Bryn was averaging what,12pts in 28MPG in the regular season and 11pts in 30MPG in the Playoffs?
You don't want him to up his scoring,you want him to up his effectiveness and get his 10ppg in 20mpg instead of 30.
That way the defense has less holes,the bench shooting is stronger,the rotations work better.
Forbes was shooting 42% from 3 in the regular season (in 5 attempts per game) and 48% from 3 in the playoffs (4attempts pg).
The Spurs goal is to help him keep those numbers at those heights,and hide him better in defense.
He can be an elite shooter,he doesn't have to be an elite scorer.