Brandon Wright did not look as good in Memphis as he did later in Dallas - different style of play and different rosters. So WCS, who doesn't have a complete offensive game, could really use some garbage time and soft opponents - he did try couple of moves in Phoenix, from what I remember. When he starts making one step drives from 10 feet out with path to the basket somewhat open, when jumper from 15 feet gets to high-30%, he'll have options, and won't look useless. He'll also learn to use the glass. Despite being age of a senior, when drafted, he had basketball experience of a sophomore at best - just doesn't have the poise or know all the little things. Give him time!
P.S. Having Rondo and Cousins next to him helped cover a lot of his holes, plus league now knows, what he can or cannot do.