The San Francisco 49ers got in the win column in their second week of the preseason. They knocked off the New Orleans Saints 16-10 at Levi's Stadium.

Some starters suited up for the 49ers, including quarterback Brock Purdy. Purdy and the first-team offense that did play had a rough go in their couple of series. Overall San Francisco looked much better in Week 2 of the preseason than they did in Week 1.

Here are observations from each quarter:

First quarter

- Good start to the game for undrafted rookie running back Cody Schrader. He returned the opening kickoff out to the 31, and then took his first carry five yards.

- Brock Purdy is starting under center and his first throw is a check down to tight end Brayden Willis. He looked extremely well-composed in the pocket.

- Speaking of Willis, he lined up at fullback on the second snap of the game.

- Yikes, man. Left guard Nick Zakelj and left tackle Jaylon Moore nearly got Purdy killed. Zakelj looked like he tried to shove a Saints defensive lineman upfield and instead shoved him into Moore, who was occupied. The lineman who beat Zakelj got home for a hit on Purdy as he was throwing on third-and-long.

- Good stop in the open field by George Odum and De'Vondre Campbell on a third-and-short. Looked like good communication from Campbell and fellow LB Demetrius Flannigan-Fowles to keep everything bottled up in the second level.

- Scary throw by Purdy way back across the field after rolling left. Hopefully that's just a preseason throw, because tossing that pass into double coverage is a good way to give the ball away. TE Eric Saubert had to wrestle it away from a Saints defensive back.

- What a mess this version of the 49ers' offense is. There's no reason for Purdy to stay in the game for a third series.

- Mark Sanchez is saying "naked" a lot, per my mother in law.

- Nice tackle on a second-down run by Ji'Ayir Brown. He was in the box to start the snap and flew in for a tackle-for-loss to set up third-and-long.

- Now a pass breakup by rookie cornerback Renardo Green on third down. He was in the slot on that snap and got a hand in to help force an incompletion and a punt.

- First touch of rookie wide receiver Jacob Cowing's career comes on a punt return. He snuck out a couple yards before being tripped up out of bounds.

- Bad incompletion on a third-and-long when Purdy tried to find WR Trent Taylor. It looked like Taylor got punked on the route and couldn't get enough depth.

- Malik Mustapha got wiped out by a Taysom Hill lead block. Not great for the rookie safety.

- Good tackle by Curtis Robinson, who lined up as the Sam LB. He got into the backfield to drop the RB for a loss of three.

- There's Mustapha with a big hit on a checkdown. He read that Saints QB Derek Carr was in trouble and got downhill quickly to level the receiver.

Second quarter

- Sheesh. 16-play touchdown drive for the Saints.

- Josh Dobbs is the first quarterback off the bench for Purdy.

- Dobbs to Cowing for 10 yards and a first down. That's good to see for both the QB and the young WR. Dobbs followed that with a 10-yard strike to Trent Taylor over the middle. Good start for him.

- Another nice throw on a designed rollout. Dobbs hit TE Cameron Latu by floating a nice ball over the top of a defensive lineman who read the boot action.

- Jake Moody drilled a 47-yard field goal. That's good to see.

- Woof. CB Darrell Luter Jr. got shaken out of his shoes on a handoff that got strung out to the edge.

- Wow what a play by DL Alex Barrett. He got QB Spencer Rattler wrapped up, then tore the ball out, and then recovered it for a turnover.

- Drop from Ronnie Bell. That's brutal. He has not had a good preseason. He's lucky that ball wasn't ruled a fumble.

- Now a drop by Cameron Latu. He's not getting himself any closer to a roster spot.

- Dobbs' scrambling ability may be what separates him from Brandon Allen in the backup QB battle.

- Another short Moody field goal. Good preseason work for the second-year kicker.

- Woof. Underthrow from Dobbs to WR Danny Gray. Then he underthrew Gray on a deep shot where Gray had a step.

- There's a strike on a deep ball to Cowing. What a game for the rookie receiver and a really nice throw from Dobbs. Cowing had to haul it in through good coverage. That's an impressive play all around.

- Another drop this time by Taylor in the end zone on a third-and-goal. That's so tough. It was a little high, but that's one Taylor has to have.

- The 49ers go for it on fourth-and-goal and Dobbs keeps a read option for a touchdown. He made a sweet move to make a defender whiff. That was a fun little stretch for a preseason game and a good way to end the half.

Third quarter

- Good run stop by Robert Beal on the first play of the second half. He flowed down the line to make a hit.

- Woof. LB Jalen Graham got lost in coverage downfield. He was fortunate the tight end couldn't find it.

- The 49ers run defense has done a nice job bottling RBs up in the backfield, but they're allowing them to bounce outside to find room. That's something that can be fixed, especially once starters play.

- Brandon Allen is under center for the 49ers' first drive of the second half.

- End around for Cowing, he takes it for 18 yards and a first down. He's lighting it up.

- Sack for Graham. He has some pass rushing chops that may be necessary with the 49ers pass rush.

- Good deep ball from Allen to Bell, but it just went off Bell's hands. He was in a scramble drill and did well to get open. Allen did a great job hitting his WR in stride. A Saints DB got there just in time to help facilitate an incompletion.

- Moody misses badly from 51 yards out. Yikes.

- Luter should have had an interception on a really poorly thrown ball. It looked like he wasn't expecting the ball to be near him and the ball slipped through his hands.

Fourth quarter

- Good tackle on a third down by CB Samuel Womack. He got downhill and walloped the TE before he could turn upfield.

- A Tanner Mordecai sighting! The undrafted rookie QB completed his first throw to TE Brayden Willis. Then he hit TE Jake Tonges on an out. That's a couple of good tosses for Mordecai in his first preseason action.

- Mordecai tried to let one rip down the field and it came out of his hand a little weird. Gray had to jump to get hands on it, popped it into the air, then grabbed it for a first down.

- Moody bounced back to hit another field goal. That's good to see.

- DL Shakel Brown broke in to hit the RB in the backfield, but he let him get away. Rookie LB Tatum Bethune flew in to clean the play up for a TFL. Bethune has had a couple of nice preseason showings.

- Luter got beat on a fourth-and-5 that would have ostensibly ended the game.

- Whew. Luter got some payback on a second-and-15 where he flew into the flat and walloped the receiver to force an incompletion. Nice play by the second-year CB.

- Now Luter forces an incompletion on a fourth-and-long. Really well done by him to bounce back after allowing the previous fourth-down completion.

Final score

49ers 16, Saints 10

This article originally appeared on Niners Wire: 49ers starters struggle, reserves shine in preseason victory over Saints