Kinda surprising to see so many people expect between 55-60%.

I posted something similar a couple weeks ago:

Taysom was at 60.5% completion percentage 2013 if you exclude the first 3 games that everyone was getting acclimated to the offense.

Not to mention the schedule is softer this year. If you exclude the better defenses he played in the last 10 games of the 2013 season(Wisconsin, Utah State, Notre Dame, Washington), he had a completion percentage of 67.8%. With a softer schedule, more experience with the offense, time to improve mechanics in offseason, he shouldn't have a problem getting to 65%. We are only playing a few good defenses this year and there is no way he has the abysmal passing performances he had the first 3 games of the 2013 season. The closest he came to the completion rates reflected in the first 3 games was 46% against Wisconsin, the game in which he lost his 2nd best WR, Mitch Matthews. He had only a couple legitimate WR targets by the end of the year, which also affected the passing game.

He should have much more efficient passing numbers this year, based on the WR talent around him and the softer schedule alone. Even before you take into account any of the improvements he has made in the offseason.

Honestly I wouldn't be surprised if he cracked 65% this year. Barring injury, I see no reason why he can't get right around 65%. The only thing I can possibly thing of is if they decided to throw the deep ball a lot more.