Burnley boss Sean Dyche concedes they've lagged behind in the transfer market since promotion.
The Clarets failed in attempts to sign the likes of Watford's Troy Deeney and Nottingham Forest's Henri Lansbury.
"Our supersonic journey saw all the things that could and should be in place, that clubs have built slowly but surely over the years, put in place," he said.
"It's been an unbelievable transformation within a three-month window.
"It includes a recruitment structure - the amount of people, which areas, widening our base to give us more information to hopefully improve the playing side of things.
"We've brought in players we think can demand, challenge. But we also want to bring in players that, it's fair to say, it can almost be a given they will improve you.
"It doesn't bother me where the players are from, it's how many I can get to choose from.
"If I need a midfielder, if there's only four or five in our market in England, there might be 15 if we go into Europe."
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