I've been running an Enhancement Shaman/Arms Warrior pair, double melee, so a little bit different, but my first thought for your pairing would be to run the boomkin as your main and to control the warrior as your alt.

Run the pair into range, charge the warrior to the target and nuke from where your standing.

This would also have you controlling the healing character if things don't go as planned. For me it's easier to keep the DPS/Tank going with macros and focus my real attention on healing than it is the other way around.