Managers challenge?

[Gaz030191]

As an NBA fan I've been watching the basketball this year and there's been quite a lot of coach's challenges.

It's an opportunity for teams manager to decide they disagreed with a decision. In the day and age of VAR would this be a useful rule in football? Here's the current rules, but of course would be tweaked for football:

• A challenge is initiated by calling a timeout and the challenging coach twirling his index finger in a circle.
• Personal fouls called on the coach's own team, out-of-bounds calls, goaltending and basket interference can be challenged.
• Only personal foul calls are challengeable in the last two minutes of the game. Other reviews can only be triggered by officials in that time period.
• Teams get only one challenge per game, regardless of whether or not it is successful.
• For a call to be overturned, "there must be clear and conclusive visual evidence that the call was incorrect," according to NBA.com.
• If a team tries to use a challenge without having any timeouts, it will be assessed a technical foul.

Obviously rules could be adjusted to say a minute of injury time is added instead of a timeout, though I'm not sure how you'd punish a team for unfair use other than booking the manager.

Thoughts?