It costs more, yes. Rookie contracts are free. If a 1st rounder busts out (sign odds), few dollars lost. Better luck next time. If Pitts is a superstar, they can trade Kittles and get those other 2 1st rounders back, easily.
Which QB is it I think they should go with? Oh, you mean JG? He's the only starter they have--and he's a 28 million dead cap hit this year, so he's not going anywhere.