I'm suggesting that the shot selection needs to improve and their scoring average as a team needs to go up. They're not scoring enough in general.
The question is how can this roster score more consistently, right now? They just beat Phoenix last night, with close range shots in the 4th and overtime.
We're 6th in PPG on the season. So that's not true either. Also I just posted that we're near the top of the league in 2P FG, FTA, FTM and 2PFG%. So we're actually doing exactly what you're suggesting; attacking the paint.
But you don't have an answer for how to overcome 14.7 PPG in 3pt deficits every game. So essentially what you're suggesting is add 8 more 2PT FGM/game. We shoot 60% from 2 (dubious if that's real, but just for the sake or argument), so we'd have to take roughly 13-16 less 3PA/game, to hit those numbers and make up the deficit.
That would put us at 20 3PA/game on the low end and 17 3PA/game on the high end. It's not a solution.