It's fair to say then, that his side's 5-1 demolition of Inverness Caley yesterday was just what the doctor ordered.
The rejuvenated Steelmen bounced out of their sick beds to give Terry Butcher's side a dose of clinical finishing that had been lacking in recent games.
But despite the win coming at the end of a week which saw training cancelled due to lack of numbers, McCall explained he wasn't surprised at his players being alive and kicking.
"It's easy after the event to say that it had been coming. But I've been pleased with the way the team has been performing generally," he said.
"The only thing missing is that we've not scored when we're on top in these matches.
"We've created chances, got a good threat middle to front. We've got to be solid at the back.
"Inverness are top scorers and to limit them to one goal was very good, and obviously to score five was tremendous.
"That's us won four away from home – we've only won once at home. We're at home to Hearts next week and we can't have the feeling that we can't win at home because we've been playing well. We just need to take our chances and yesterday it came off."
The Steelmen raced into a two-goal lead at the interval courtesy of efforts by Michael Higdon and Jamie Murphy.
Caley threatened to make a game of it when ex-Well man Richie Foran halved the deficit two minutes into the second half, but goals by Adam Cummins, Henrik Ojamaa – his first since March – and substitute Omar Daley made the win secure.
It's a victory that hoists the Fir Park side up to fourth in the SPL, and will also go some way to banishing any lingering disappointment at taking just one point from home games with both Dundee clubs.
But while McCall can look towards Saturday's visit of Hearts with a warm feeling of contentment, Caley boss Terry Butcher, who watched Well end his side's 10-game unbeaten run – is already putting his recovery plan into action.
"It is one of these games that we'll have a look at the DVD, although not a long one, then we'll throw it in the bin," explained the Former Fir Park boss.
"We never played from the first whistle to the last. We were comprehensively beaten. We just never got going and that was disappointing."