You have to be able to shoot, able to move, and wise enough to know which one you should be doing on any given inning. Anyone who favors their shooting over their moving, or who favors their moving over their shooting, will eventually lose to the player who does not favor either style, and on each turn makes the correct choice as to which one the particular situation calls for.
Just like in poker, you could ask the question about which style wins more in the long run: fearless aggressive players like Gus Hansen, or tight and methodical players like Minh Ly. Well, both those two players win a lot of money, and so you could argue for either one. But if their first instict is always towards on or the other of those gears, they're not playing optimal poker. The better player will be very ready to re-evaluate and change gears whenever the situation calls for it, and will be disciplined about playing with the right style for the table situation, without relying on a comfort zone at one end of the spectrum or the other.
-Andrew