[Cataephract]

You might consider adding a samurai. Between that and a lord, you get all the basic out of combat buffs; armorplate, magic screen, ench. blade, miss. shield, and x-ray, as well as good in-combat buffs like bless, soul shield, and element shield. The only thing you will be missing is haste, but perhaps you could switch the rogue for a bard. That virtually gives you a third caster anyways, and a bloodlust equipped bard is a very good tank. In fact, she's my main tank in my party. Just some thoughts.