Other than the obvious lack of size, what are likely the biggest deficiencies with the 2016-17 team? Barnes's biggest criticism has been recruiting... which is irrelevant to the question as I've phrased it. I believe that they will be as well coached as they have been for the last several years.
Depth and consistency at perimeter shooting might be THE problem. The kid from Carter is supposed to be a good outside shooter... but freshmen often struggle to consistently knock down 3s. Mostella showed some potential last year, but just wasn't consistent enough. Punter's is going to be a tough role to replace. Even Baulkman had some moments and even when he was in a slump, he was still a threat and couldn't be ignored by the opposition.
So without a powerful inside offensive presence or a proven perimeter shooter it could be a difficult season. At least several of the perimeter players do seem to be capable of penetrating... but TN will need some offensive diversification in order to take a step forward. Maybe Hubbs can excel with the mid-range pull up jumper. Maybe the Canadian can become an offensive weapon. Maybe Mostella can emerge like McRae, Richardson, and Punter have in each of the last 3 years. I think that Turner could be outstanding, but I hope he'll have a weapon or two to complement his game.