Roby issue will be Mavs' evaluation ability - have they correctly identified a player with NBA ability to tie up until he's developed into a useful piece? If he can't play at NBA level, the contract's control/flexibility is of negative value. See Ledo, Mekel, Hammons, Spalding. https://t.co/H1zAsdIfCS

— David Lord (@David_Lord_2020) August 7, 2019