The draft was never gonna be the make or break for this off-season.
What happens with Hayward? If he goes (seems likely) do they find a way to use his departure to get more assets?
Who do they sign with whatever cap exceptions they have?
This is a very good team that without Hayward playing at all swept the Sixers and beat a very good Raptors team in 7. Their main weakness in the playoffs was fourth quarter execution more than it was a roster issue.
I'll be very happy and enthusiastic about next season as long as Danny makes some moves to shore up the bench.
They needed to upgrade backup point from Wanamaker, who just doesn't have enough scoring juice. They needed to upgrade back wing minutes from Semi Ojeleye, who is simply not tall enough or a big enough threat to score. They needed to shore up the backup center position, because Enes Kanter is a regular season player with very limited value in the post-season.
I think the draft has mostly addressed the backup wing issue. Between Pritchard and Waters, they probably have a solid third string point. Still need to find a better backup point.
If Hayward leaves, ideally they would find somebody who can start so that Smart can slide back to a 6th man role. However, I think it would be OK if he remains the starting 2 since he should be out there in crunch time anyway.
If Rob Williams stays healthy and can become a bit more consistent, he and Theis should be all the Celts need to fill out the minutes at the 5. Grant Williams should continue to be a solid 15-20 minute option at the 4 who can fit in nicely with the starters as necessary.
Langford getting healthy and actually contributing as a defensive 2/3 with some ability to attack the basket would be nice, but I don't know how realistic that is.