Personally, I don't think Lamela belongs in that CM group, way too erratic with and without the ball. I love the fact that he works hard without the ball, but every other tackle is a foul. And I'd only ever put Alli in a CM3, he's just not diligent enough without the ball otherwise. Pretty much same Eriksen. I even struggle a bit with the notion of Winks in a CM2 because he's not brilliant without the ball.
I respect that. I personally think Lamela will fit where you put him. Agree on Dele, a 3 is the best fit. But he did play in a 2 when he first came on and he was pretty good. Eriksen is full on a 3 type midfielder.
Winks I fully believe in, but if it is a 2 it needs to be Wanyama and only Wanyama. I agree that he isn't the best without the ball, but with more game time he will get better.