Yup because the windows in the NFL just aren't very big or there for very long at all. Folks have been giving Brady some crap for the year he's had in Tampa (which is nuts he's done great really) but it takes time for QBs and receivers to get some of that timing and trust down. No matter how good and talented they are. The tall long armed guys like Evans can make the margin of error larger but that takes a lot of reps.If I had to sit and think about one attribute that really sets one QB apart from another as far as being successful in the NFL, it comes down to one very important skill that not everyone has. I feel what sets many QB's apart at the NFL level is the ability to throw in windows anticipating the WR's to catch up to the ball in said window.
This is why you can have the strongest armed QB with great footwork, running ability, all the throws, etc.. that may not be successful. They have to be quick with their throws, Yes, but they have to not wait until they see a receiver open like in high school or possibly college. They have to throw to windows and trust the receivers.
If I had to pick one, one of the skills that sets QB's apart at the NFL level, it would be this.
Imagine if Brady was 5 yrs younger and in year 3 with this current receiving group he's got. That would be a scary thought for the NFL I would think. I mean Jamous Winston put up crazy yards and stats with em. Brady is more then capable of doing that minus all the interceptions..