"Wemby's efficiency is bad!" "He takes bad shots!" He's also spending most of his minutes without a real PG.
In the 192 minutes Wemby has spent with Tre Jones on the floor, he averages 26ppg/36 on 58%TS. That's also 33.2p/100 for those curious. This is actually an astoundingly strong blend of volume and efficiency for a rookie.
What's the other factor holding Wemby back? He's playing PF next to Cs clogging the paint and taking away some mismatch opportunities. Wemby has only gotten 124 minutes at Center this season, but when he does? He averages a whopping 33ppg/36 on 62%TS. That's with or without Tre Jones at PG even.
These numbers are absolutely absurd. When the Spurs put him in a position to succeed - either with an actual PG or at his best position - he dominates. He's already been scoring at an all-star level. If you're down on this kid, questioning his scoring and efficiency, I think you need to watch a bit closer.
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I think it's a good idea to have him do things he's not great at this year, it could pay off in the future. He should continue to improve his dribbling and shooting.
Long-term, he might be a bit like Duncan (or AD in his championship year): Starting at PF and playing a lot of his minutes there to preserve his body, but switching to center when it's winning time.