I’d argue the inclusion of those two does give us slightly more control, as against Rondon teams know they can step up and play higher because he is an absolute crab, teams also know that Iwobi adds pretty much nothing which probably makes them more confident.I'm fine with that but neither Richarlison or DCL help us control spells of games
And while they help to add presence in both boxes, they aren't responsible for our deliveries or defensive organisation at set-pieces
And to say we're so bad at defending corners, we love giving them away. But that's cause we defend ridiculously deep and constantly allow crosses into the box.
In addition DCL and Richy are much, much better at pressing the opposition, while obviously makes it a bit harder for them to hold the ball.