Not sure what your tank is doing if bard have to kite the boss... But kiting can be a good thing, once I soloed Chimera in Cutters Cry by kiting the boss around the arena from 50% till death without being hit once. And obviously when soloing something like levequests kiting helps too. If you prefer to stand rooted then the bard gives nothing that BLM can't do with 150% more efficiency.