Johnny Manziel has made nearly as many headlines this offseason as he did while he was leading Texas A&M to a Cotton Bowl victory last fall. It came to a head at the Manning Passing Academy, when last year's Heisman winner, expected to participate as a counselor, left without notice.

Some experts have brushed off Manziel's actions as youthful inexperience. Others, including Peter King, think the 2014 draft hopeful has "monumental red flags."