Yes, I know! But I hate to have two characters identical in fighting style and four characters are also quite limited since I give them one/two classes each and not more! It's how I always do... Even in VII... Only Aeris is the White Mage/Summoner (like Reina is here in V) and when she is gone for good, no more White Magic or Summoning!

The same here with Galuf as Black Mage/Time Mage but when I have Krilie taking his place she does it as Dragoon/Blue Mage (the same class combination I give to Cid in VII), so there's a chance to have another couple of classes in play without having characters that switch classes continuously... Also I think Dragoon fits Krilie greatly!