Any time you can add a potential star, at any position, I wouldn't call that a wasted pick. We don't need a SF either, but I'd still take Stanley Johnson if he's the top player on my board when the pick comes around because we can find him minutes if he deserves them. Realistically we have an MVP caliber starting center, a borderline All-Star at SF, a solid starting PG who's probably in the 15-25 range at his position, and a couple of SGs who are more potential than production right now. We have no bench. All of our PF options are terrible. Our backup PG is 39. Our backup SF is a minimum contract vet. Both those guys are free agents. We have no backup C. What I don't want to see is a situation where we look back in 2 years and think "wow, we really missed on that guy -- we'd be in the playoffs right now if we'd drafted him". I don't care about positions, I just want the best talent on the board. We can find minutes for an All-Star level player at any position. You don't fix issues with the draft at the #6 pick, you take the most talented player you can get and move on from there.
Do you think Mudiay can contribute now? If so, then it's not as big an issue, but we just can't afford the chance, when we're better off using our available assets to plug a hole at the PF or SG position.
If we missed, in two years we'd be replacing Cousins as well. I'd rather take the safe route. WCS, if he's available, and if not, trade the pick to plug a hole. If that avenue is exhausted, THEN I think about random potential. We're not building from scratch; we're trying to build around Cousins and win now.