Stuart Gray says the loan market is not always a quick fix when it comes to freshening up the squad.
The Wednesday head coach says temporary signings should not be expected to be thrown straight into the starting XI as they are unlikely to be fully fit.
“I think with almost every loan player that I’ve brought in here that they haven’t been match fit,” Gray told the Star.
“And that is just a fact of the process.
“In all probability, they are out on loan because they haven’t been playing for their club or they’re a young player that hasn’t quite broken through.
“In that situation you are attempting to get them up to full match fitness by giving them minutes in first team games.”
New loan signing Royston Drenthe is unlikely to be handed an Owls start in the near future according to Gray due to his lack of match time.
Drenthe has not played a senior game since early April and was not involved in pre-season games at parent club Reading after being exiled to the U21 squad.
Gray said: “Royston has looked really sharp in training but he’s not close to match fitness yet.
“I think we’re going to have to get his match fitness up with cameo appearances over the first few weeks of his time here.
“But from what I’ve seen of him so far, I think there’s every reason to be excited about Royston.
“He looks a very hungry player to me and I think we will be seeing him put some opposition players on their backsides very soon.”