Hard to criticise Southgate but he seemed very reluctant to change things when they werent going well.
I actually thought this tournament backed him up and proved that none of our subs were good enough to change/improve things. Can't recall one sub coming on and adding something in pretty much any of the games. Rashford was awful (even though overall I do rate him), Dier was poor, Vardy didn't get too many touches.
Rose was pretty much the only one to add anything, and probably should've been in the first team on balance.
I think if anything, it exposed the lack of a clever creative player in the squad, even though we don't have too many good ones to pick from. I would've taken Lallana myself, but even Wilshere or Shelvey at a push, just to be able to pass the ball in the middle and retain possession in certain games.