Throw in Marlowe and why we can't recruit a QB and I'm with you.
We can't recruit a QB because we are too critical on them as fans and media. We scare them.
This isn't true, QB's are under just as much scrutiny in the sec, big 12, or wherever fans have expectations for their teams. Most athletes at this level have dreams of playing in the NFL anyway so if you can't handle Nebraska there's no way in hell you'll make it in the NFL.
Martinez's problem is that he has no PR skills, he always comes off as cocky and dissinterested in the media so the fans only loved him because he won games. Once that went away he had nothing to fall back on and now the media/fans are eating him up. People were much more reluctant to rip into QB's like Joe Ganz and Zac Taylor because they seemed like genuinely nice guys off the field, neither of them really had that much more success than Martinez yet the fans stuck by them through thick and thin.