You can't bat against pace with minimal foot movement unless you are exceptional, and I mean KP or Trescothick. There's a lot of similarities in style as in Jennings and Tresco play away from the body and are upright left handers in style.
But a gulf in class like the Grand Canyon.
So for most mortals you need feet it's really the key as some of us were taught early on.
Before the technique 'experts' comment 'no it's about head movement' yes if you have hand eye co-ordination like only the best in the world, for the rest the feet have to help the head get into position.
Jennings is not behind the ball or going towards the ball with much at all.He has come a long way with this fault, it's the same one as when he was first picked and then dropped.
I would make a change now and get Denly in, he is a top 3 bat and picked on the tour because he is deemed good enough to be there.
With no matches in Sri Lanka or warms ups here it's a tough ask, a very tough ask, but Jennings needs to go away and fix his faults.At 26 he can still improve but he needs work.
Waiting for other ideas from behind the keyboards but please but please not Bairstow any higher, he is excellent but has his hands full this high up