Lineup advice for MTU novice

Im going to try playing MTU once I finish all time domination (8 games away). Ive got about 400kmt. Should I sell Wallace and spend all my mt on PD Giannis in 1 week or buy Yao/Sampson and BRoy?

BRoy and Sampson/Yao

yeah just dont use ben wallace if you want to succeed in MTU