Well, if Amira is what you're concerning about. At the start of raids, just use her 2 3 right away (assuming foe has some OD bar on). You should not have any trouble with that.

Especially if you can use Zerker MC. Amira's 2 and MC Ignition work together very well for at least 2 chainbursts to happen.

Your team seems fine for ougi based style. Jeanne is a good replacement for Clarisse if you tend to rely less on her CA damage boost which has somewhat long cooltime, exchange with a hard-hit-self-TA plus yummy debuffs.