If you think about it MMO strategies involve picking players how fit specific roles:

tank - can soak up damage and keep the big bad focused on them dps - does damage to the target while healer - makes sure everyone stays "alive" through the fight.

Mismatching roles never really works well. You get similar patterns in the "real world". You're people person does well with end users, etc .. It's a more diverse group (sometimes much less defined) but a similar set of ideas to follow.