Speaking to the East Anglian Daily Times, Bowden said: "The Board approved funds for Joe to go out and get a player some time ago.
"That could be for loan players, or even to buy at the right price. The frustrating thing, though, is that even though the money is there, the right players have not been available so far.
"I'm sure we will get a new player in sooner or later, but it has to be the right one."
It's likely should Royle make his move in the transfer market, that he will try to secure the services of either another striker or defencer.