I agree with @Poxx. you have 4 tanks, three of which are taunters, so you have very little damage output.
Ideal rebel team would be Wedge (L), Biggs, Lando, Chirrut, Baze. Wedge's leader ability plus Chirrut essentially means infinite health, with Wiggs and Lando you would have way more than enough DPS, if Baze can't dispel enemy taunt for some reason, you have Lando's AOE to knock them out, and the list of pros goes on.
The wonder of that team is that all of the toon's roles can be covered by another if they get knocked out.