In theory at least he sounds like he'd be the perfect fit alongside either of Jerebko or Olynyk, and would enable us to field lineups where all 5 players could hit open threes that aren't a complete disaster defensively.
The plan is clearly not to tank, but to make the team incrementally better until we're actually respectable enough to attract a FA. Win 50 games and make the playoffs by adding Johnson and perhaps Harris and maybe we're able to make a splash in 2016. It's a bit of a crapshoot, but every path to rebuilding is a bit of a crapshoot.