Ulloa looks the type of forward who would thrive if he had a smaller, quicker player operating in a sort of 20-yard circle around him - playing off him, getting ahead of him, looking for flicks, coming short and linking the play, doing the wide runs to allow Ulloa to stay central etc etc.
Could...
A good player. One of our most important. But he does piss me off a little tiny bit with his remonstrating with the referee and hard done by mannerisms when he doesn't get a free kick.