In a nutshell I think this is the answer to the connundrum. Especially when we are playing away to a big physical side like Burnley, who pride themselves on their work ethic, we need a physical presence up front, that means either Murray or Ulloa.
If we had played Locadia instead we would have...
Locadia and Ulloa are not like for like palyers. In any case, Ulloa won't be here next season, so Locadia l'm sure will get far more game time. Game time is a horrible Americanised phrase l know, but you get my drift. :)