Some college QBs can have 300 yards passing but most of them were on swing passes, screens, short crossing routes and the receiver or back is actually gaining most of those yards after the catch. Vs a QB that actually drives the ball down the field with passes 15+ yards past the line of scrimmage. Comes up a lot on scouting QBs because the nfl needs guys that can make throws in small windows down the field, not just hit a wide open guy 5 yards away over and over