As much as DCL has improved I don't think he is good enough yet in one on one situations
Most of his goals have been headers or one touch finishes
Balls over the top may not yet be our best bet
He has gotten 2 of those, both from Keane. 1 his best goal this season and 1 weak shot from outside.
In both of those occasions, he showed his speed and; most importantly, the ability to bring the ball down.
I think he can indeed be a weapon in these type of plays. Would help if he could improve his long range shot a bit though