Perisic is by far the better and more economic player. Much smarter tactically and significantly better in defense - which should be at least 50% of the criteria a WB is judged by. Ironic, considering their natural positions as a forward and left back respectively.
As much as I like Dimarco he's just not going to have the opportunity to show off that sweet left foot against better opponents, and defensively he looks even worse than what I saw at Verona. Simply not being good is one thing, but I dislike how complacent he looks in defense.
I feel like if you have these deficiencies, you should work doubly hard to make up for them with grit and effort. But you can tell Dimarco's head is focused almost entirely on offense. It's kind of like watching Kolarov - every second he has the ball at his feet you can tell from his positioning and posturing he's just itching to take a shot from 30m.
Dimarco's left foot is another thing though. Kid is blessed.