[quote=DeathstrokeSW]
 Why does he not work well with Jedi? The history in his bio wasn't clear. It seems like he'd just hate the banner of the Mercy Corps, seeing the "Non-Combatants" as wasted potential.
[/quote]

Partially because the Jedi haven't gotten involved until this point, he thinks it's their way of seeing themselves as "superior". I think the main distaste will come out when Revan takes charge and Jedi start getting put in charge of things.