The Dallas Mavericks are in a new season and will have very different expectations for their players this year. Dwight Powell will likely be coming off the bench this season and will be getting fewer minutes than he did last year. However, the Mavs expect to compete a lot more this season so expectations will still be very important for him, even off the bench.
Dwight Powell really found himself as an NBA level talent last season. He fixed his issue with catching lobs, his finishing got better, his rebounding got better and he was just all around a better player.