I don't think it was a bad call to be fair, most captains would probably have made the same decision, it's just that our openers aren't very good at . . . errrr batting!
Whilst I agree that Jennings isn't the answer, I do think that Cook should keep his place, he still has runs in him, is an excellent slip fielder, and of course adds so much invaluable experience.
Continually chopping and changing the team does no long term good either. Those younger players...