"We'll all have to be patient. Every transfer is different - we were able to do the Gareth Barry deal very quickly, the one for Roque [Santa Cruz] was long-winded. We have to accept there may be others that will take a little bit of time.
"There is always an element of frustration when you can't conclude deals quickly. But we will give every deal the patience we feel it deserves. If we get to a point where we feel something is not going to happen, that's the time we move away. We've done that in the past."