over the last 6 seasons, I analyzed almost every offensive tactic in BB. my result about Iso Outside is that your PG or SG starts the attack. there are two possibilities here: 1) he has only one defender and he creates his own shoot or 2) he draws more than one defender by his side and pass the ball to the inside.
I played Iso Outside with the german U21... our last game against Ukraine showed both, the strengths and weaknesses of Iso Outside. During the first half our guards fed our PF and C with balls and these guys scored on a high level. our FG% in the second quarter was 65%. the PGs and SGs took only a few shoots. but after the halftimebreak and the ajustment of the engine, the ukrainian guards stopped our ones and there were no possibilities for passing the ball to the inside. our PF Miesslinger, who scored 22 points in the first half, had only 3 shooting attempts in the second half. but our guards took a lot more (compared to the first half). and if you can't score from the outside you are messed -.-
the same goes for iso inside but only the other way round. your bigs start posting up, creating their own shoot or passing the ball out to the free guards.
in my opinion, both tactics are pretty cool. but you need the right players. but if you have them and start rolling it's pretty hard to stop it.