The Meadow chief wants to bring in a handful of players to improve his options but will focus on clearing out the overloaded squad he inherited.
Midfielder Charlie Colkett yesterday began the exodus as he returned to parent club Chelsea after a disappointing loan.
Edwards looks likely to depart Reading this month if an agreement can be reached on the remaining few months of his contract.
And it’s understood a return to his old club is a strong possibility for the former Wales international.
While Ricketts has positions in his squad that require strengthening, he stressed deals are difficult to be struck in the winter window.
“It’s hard to bring in what I’d like to bring in,” said Ricketts.
“It wouldn’t be loads, ideally I’ve chosen a handful, just to complement the squad that’s already here.
“You’re forever scouring for the players you want, it’s not always easy.
“But yes, plans are in place, things are going on to see if players are available or if a deal is possible.
“There are so many factors to signing players. I wish it was like going to the supermarket picking something off the shelf and walking out, that’d be lovely.
“There’s so many things we need to take into account.”
Ricketts explained the ‘excellent’ Colkett returned to seek game time elsewhere after playing just one league game for Shrewsbury, on the opening day.
Meanwhile, he suggested that some of the eight players Town have out on loan could leave the club on a permanent basis.
“It just depends on the individual,” he added. “Some players are at a place where it’s ‘right, just go and play games’.
“Others it might be a case where a permanent suits them.”