I don't know if its just me but I think Keita is a very decent header of the ball...
Like the poster above me said, I don't think getting another player is the solution, Pep doesn't seem to use SPs as weapon at all, how many times have we seen a dead ball played as a short pass? Countless times... We have a few lads that can out jump a lot players, such as Pique, Puyol, Milito, and Keita, we just need to utilize them in dead ball situations, perhaps late runs in the box, such as the one that scored the equalizer against us...