The Saddlers continue their League One campaign today when they make the long journey to Fratton Park to take on Portsmouth.
Whitney has made no secret of his desire to add another striker to his ranks this summer to help ease the pressure on Erhun Oztumer, Simeon Jackson and Amadou Bakayoko.
But the boss revealed he is also keen to strengthen in wide areas as he looks to add more pace to his side.
"I'd still like to add one or two," Whitney said.
"I’ve got my name in the hat for a couple, but so have several other clubs.
"I'm looking in wide areas – I want to bring some pace into the team.
"I’m still looking for something up top and possibly midfield. I’m making sure I keep my hand in in case anything develops and becomes available.
"It’s mainly the same targets I’ve been chasing – and I’m just waiting to see if anything happens. Things are now starting to filter down from the Premier League."
Earlier this week it was revealed the Premier League is considering a proposal that would see the transfer window close before the start of the season.
And Whitney believes that is something that should be introduced across the football league.
"A lot has been said about the transfer window and how it might change," the boss continued.
"I'd like to see that change made across the board.
"Once the season starts, you’ve got your squad in place, you’ve done your recruitment, that’s your squad moving forward.
"If I lose two or three of my big hitters now, it’s difficult because most other targets are gone. I think it should go right through and be a blanket decision, and it be quite clear that once the season’s started, that’s it – that’s your squad to work with.
"That way, players don’t get upset, their heads don’t get turned."
Meanwhile, Whitney has revealed a number of clubs have enquired about taking youngsters Kory Roberts and Callum Cockerill-Mollett on loan.
"Kory has got a lot of interest, Callum has got interest," Whitney added.
"But they’re close to my first-team squad and we’ve got to look after ourselves and keep our squad strong."