Yeah, it would be nice if someone led the whole thing instead of the US having to each time, and we don't have a great record of success in the region.
I agree on the part about it would be nice if a muslim (and no, Obama is NOT muslim) led the whole thing against ISIS, but the problem is that the entire region is a stragetic power struggle, as it has been for millenia. Saudi Arabia could take up the lead, but they hate Iran and would rather let ISIS weaken Iran, Syria has it's own problems, Lebanon also has it's own problems and doesn't have the military to deal with ISIS, don't know much about Jordan, Egypt kind of has Lybia and Gaza to handle, Yemen, Oman and the UAE, don't know about those three. Quatar seems to have a good deal of diplomatic influence, however, from what I've heard, they have friendly relationships with many terror groups, so they might not be such a great one from a moral standpoint. Turkey could be a good choice. Iran of course, has it's own powerplays in the region.
Where's that comparison of the relationships between countries in the Mideast, some groups in the MidEast, and the US, and Israel? There really isn't a whole lot of unity to go around.
Also, isn't ISIS targeting all groups? Even Saudi Arabia is scared of them, so I don't see how having a muslim lead the whole thing would spark some kind of holy war if it's done right.
For outside the MidEast and North Africa region, perhaps Indonesia, but they're way too far removed from the politics of the region. Actually, that might be a good thing. OR.... maybe not, if they don't understand the, um, tiny details of how diplomacy flows in the whole region.