Duke's question marks are:
1. Depth- after the starting five, they have a bunch of 3 to 4-star Freshmen and Sophs. No guards to speak of behind the big three (Allen, Duval, and Trent). Frontcourt isn't much better with DeLaurier and Vrankovic on the bench.
2. Experience- one Senior. No Juniors. This is not a typical K team. K always has Juniors and Seniors to lead the way. He has one now and he is not the model of maturity and leadership.
3. Post play- is Bolden a top 15 stud, like we all thought or a bench warming dud, like it looked last year? It's unclear now which he will be next season. If he isn't ready to start, then Carter has to slide to the 5 and leaves them with the another question: who plays the 4?
4. Duval eligibility- will he be able to play? I assume he will be, Duke players are always eligible. Duke fans will say that K won't recruit a player unless he is going to be eligible. Rival fans will say that the NCAA would never rule a Duke player ineligible because they favor Duke. Regardless, this is the least of the question marks since we probably all agree the kid is going to play.
I see Duke as a top 5, because of their starting five. I feel like Bolden will make major strides and solidify that Center spot. I think they win the ACC with UNC and UofL losing key players. The ACC will be down a bit this season, IMHO. I think they probably end up losing in the first weekend or in the Sweet Sixteen because of their lack of depth and experience. Never count out a Final Four run with K on the sidelines. A title would be a shocker, but anything can happen. Teams get hot at the right time and overcome their weaknesses. It's a lot about luck.