It's hard to question Ranieri's methods given the Foxes' seven-point lead at the top of the Premier League and his latest training practice could prove the most crucial yet.
Vardy's impressive haul of 21 goals this season have largely come from his pace in behind and ruthless finishing, which defenders have grown to fear throughout the campaign.
SUBMIT AN ARTICLE
Apply to become a GMS writer by signing up and submitting a 250 word test article: http://gms.to/haveyoursay5
The 29-year-old's draining and dogged style of play requires a lot of recovery time and it seems Ranieri is willing to afford him just that.
The Italian's decision to train fewer times per week and with a lesser intensity has proved a wise decision, with Leicester energetic and fresh week in, week out.
And now, Ranieri has taken steps to particularly preserve his clinical frontman by ordering him not to take part in shooting drills during training sessions.
On the matter, Vardy said: "I don't really get the chance to practice that much on my finishing because we have our shooting drills early in the week when the gaffer's wanting me to rest my legs.
"So normally, when there's a bit of shooting, the gaffer tells me to go inside. I'll keep doing that if it means I'm saving my legs - and goals - for games."
West Ham's Dimitri Payet recently enforced a similar philosophy regarding his free-kicks. The Frenchman has found the net five times from set pieces in the last three months alone and no longer practices them because he believes he has mastered the technique.
So practice does indeed make perfect - but it's important to stop once you're there.