Here's a hypothetical I wanted to try out, if I was a Gm for the spurs and had to make a trade, I would send fox, biyombo, and 2 2nd round pick to the heat for adebayo and Davion Mitchell. I figured this would be great, you're doing a mix of long run development and win now.

Adebayo is a great defensive 5 who can switch between the 5 and 4 with wemby, and you're getting harper in the starting 5 who can develop to a great young star, and getting a defensive perimeter player in Mitchell. I think this easily makes San Antonio the best defensive team in the league, sets them up to make a deep playoff run in a win now mode, while players like harper, castle, vassel and wemby (with Mitchell in the bench) would develop into great players in the long run.

Spurs fans, let me know what you think