He did make some big shots, especially when the shot options were limited. On the flip side, his D was rather limited, so it's questionable how much of a plus he was when on the floor.
There's regular season BB, and there's playoff BB. The regular season is a grind, and while the best teams generally win more games in the regular season, every team is dealing at times with fatigue and injuries, and they rarely have in-depth offensive and defensive plans for their opponent.
In playoff BB, the teams know each others tendencies, their strengths and weaknesses, and they play to their strengths and try to exploit weaknesses. In the playoffs last year, the Sixers had limited O options, especially from the outside. This allowed their opponents while on D to drop off of all Sixers from the outside except Redick and to a lesser extent Embiid, and to clog passing lanes and to double on the cutters and the drivers. On the flip side, Covington was the only Sixer that played above average D. Embiid played decent D, and Simmons played adequate D but was a liability against those that could create a shot off the dribble. Saric was terrible at D, though Redick was even worse. That was too many weaknesses that opponents could attack.
Butler instantly becomes the Sixers best defender, and does change the dynamics a bit. Teams will attack Redick, whenever they get that matchup. To a large extent, how good the D of the new Sixers' lineup will be depends on how well Chandler does.
