Don't cut out the weaker or less-experienced characters. 1) it's a game, so everyone should get a turn 2) forcing a weaker character into the spotlight has huge potential pay off in BW.
To wit: the inexperienced character can gain advancements in necessary skills, but also the more experienced characters can help and gain advancements for themselves.
And, these odd characters can break up predictable behavior. In a recent game, Thor thought he had our number. He thought he knew what our action would be for a character that typically favors defend, because he is very weak on the attack. Well, we forced that character to attack and thus beat Thor's feint—and subsequently won the conflict.
"Athos—Porthos, farewell till we meet again! Aramis, adieu forever!"
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