As a 1st round pick, how bad do you have to be?

[Niner Outlaw]

Then there is Titus Young(doesn't qualify for your OP but...). Basically brain damage cause his mental issues. Pretty sad.

Yep. Mental issues hurt a lot of these guys. Cowboys RB Joseph Randle is probably the most recent. How are those issues hidden or dealt with when the player was in college?

 

[Niner Outlaw]

Add Justin Gilbert to the 2 year list.

Cleveland is now the only team on the list 4 times. Mike Junkin, Brandon Weedon, Johnny Manziel, and Justin Gilbert. Wow.