Brees is short and does not have highest top tier arm strength.  Those factors alone kept him out of the first round.    He benefits from playing at least 9 games a year in a dome and at least 3 more in summer conditions   All that said he is truly a remarkable player and deservedly a certain hall of famer.   Rodgers is short as well, listed 6'2 which means he may be 6'1.   Interestlngly 2 of the top 5 in today's game lack prototypical size.