Only conclusion I can come to is that the mental makeup of a QB is grossly undervalued. The distinction between Rosen's feeling of entitlement and Allen's desire to work for everything he has is such a stark difference. This was what made Brady great, too. Even now at his age, during the SB for whatever reason, Tyrann Mathieu did something to annoy Brady and he responded by telling him he's going to throw in his direction before proceeding to do it several times. It's pretty funny that he still has the chip on his shoulder after all this time.