That privilege 

Be white brehs
Dudes like mallet, weedrn, clausen will always get deals
While guys like Manuel , logan Thomas, Geno smith
Geno and Manuel are on teams and those 2 are AWFUL. Geno and Manuel are better than Clausen but they're on teams so they can't get signed by the Ravens. I bet they would have been tried out by the Ravens if they were free agents though. It's called desperation. And if you're a free agent when a team is desperate you're going to get paid more and get deals. Logan Thomas was pretty dogshyt his last year of college by the way, so not sure why you're listing him, but he's on the Dolphins so again, can't get signed by a desperate team like the Ravens. I know people like you get off on making everything about race, but this really isn't the situation to do that. There aren't many black free agent qb's that I can think of right now.
P.S. I've noticed this forums love for Geno and Manuel and I understand it, but jesus lol. Y'all should actually watch them play because they suck.
You realize that that's going to change significantly over the next few decades right? Now that the overwhelming majority of the NFL is African-American, there is going to be an extreme increase in African-American head coaches as players retire and move on to other careers.