Hi 4-4-2 !
I made mention of this in one of my earliest threads in 2007 as I noticed, other than Ryan Giggs there is hardly anyone who can kick a good corner. When Ryan Giggs is not on the field, I always wonder who's going to take those kicks. Rooney, Hargreaves, Carrick, Nani, Anderson, Valencia and others have taken them, but save one or two good crosses, all the rest have been appalling.
Corner kicks are very important. Many teams score from corner kicks and we've scored a good lot in the past too. Ryan Giggs will most probably hang up his boots at the end of this season, but then if we do not have someone to replace him so far as 'kicking corner kicks ' is concerned, then we'll definitely have a problem.
The player taking the corner kick does not necessarily have to place the ball on the head of his team mate. No! -- Absolutely not! But he can cross it at a reachable height if ever he intends his team mate to head it.
In Giggs's absence, I've so often seen the' supposed cross' from the corner, not even flying past the first defender. And at times, if that player's initial corner kicks failed to reach the first upright, the ones that follow are kicked with so much power that they fly and drop nearer the other corner flag rather than the second upright.
If they can hit very short and very long ones, I'm sure with some proper training they'll be able to kick some good ones.
Cheers!