If they're playing both Ash and Jadeja at 7 and 8 I'd say they don't need to pick the third quick based on batting prowess, so what about Unadkat for the left arm angle?
You shouldn’t ever be picking your third quick based on batting prowess anyway in the first place.
The only reason I didn’t mention Unadkat was because of his own injury issues and lack of experience. If he’s picked ahead of Umesh I’d just assume he was killing it in the nets and be fine with it.