It's a combination of Book and the O-line. This year Book didn't have time to go deep very often, but that's not his strength anyway. Give him time and speedy receivers, his arm still isn't strong enough to go deep with speed on the ball. His ball is losing some steam giving DB's the opportunity to close. Another year in S&C will help that some, but not much. This was his first year. He's now seen some disguised defenses that he never saw before. I do expect his play to improve considerably next year. Just don't expect him to go deep with authority.
Yup.
I don't expect him to become "Long Ball Ian", but I do expect him to improve a decent amount.
Here's my line of thinking.
1. Book didn't get 1st team reps till he was inserted game 4.
2. BW lived on running and 50/50 balls.
3. WR at the time were their to maximize #2. Safe and sure handed, but slow.
4. The speed that we did have, was primarily in the freshman class, or moved to RB.
5. OL was (and is) subpar.
6. Offensive production (lack of) due to 2, 3, and 5 were the reasons the change to Book was made.
7. Book inherited 3 and 5. O scheme became dink/dunk because of it.
8. Book was likely coached to run if read 1 (ISD said this too), or maybe 1-2 weren't available at a good portion of times. The long ball was likely read 3, which was de-prioritized due to the run coaching.
In short, Book had very little time to build chemistry, and what time he did have, was with slower WRs. When speed was inserted (Austin/Young), we saw good things. Austin couldn't keep out of the dog house, and not sure why Young didn't get more time (likely for the safer and more experienced Claypool).
It's like asking a green second string surgeon who has only worked with semi sharp blades to deliver laser-like surgery performance with the same blades. Not going to happen. Book needs to trust the OL more, but the OL needs to inspire trust at the same time. Book doesn't have to have a rocket arm to improve at longer throws if the OL is holding and he has guys getting more separation. It's simply a matter of timing and chemistry. This is not a case of BW trying to learn to be accurate like last year.
At the end of the day, we shall see come next year. I wouldn't be shocked if Book improves a bunch, and I wouldn't be shocked if PJ becomes the man. Either way, if the OL sucks again, neither will be great at the long ball. Regardless, we should have WRs that can at least get more separation assuming the younger guys step up and are given a chance by BK.