The Spurs boss revealed how the experimental role was first tried in pre-season and suggested that, while it has been successful, it is not necessarily a definitive change
The Portoguese revealed how the Welshman's shift in position was first tried and tested in Tottenham's pre-season tour of the United States.
And while the Welshman has been in sparking goalscoring form down the middle, Villas-Boas isn't sure if the switch should be a permanent one.
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"Fortunately it is something that worked for us and due to a couple of injuries it was something that we had to keep trying.
"We fine-tuned Gareth to play there and he has been tremendous because his talent allows him to be adaptable.
"I’m not sure that the shift is definitive but it does give us the option of using him in different positions. At the moment, though, the goals he is getting are giving him the buzz to play there."
The former Porto and Chelsea manager was also glowing in praise for Bale, who swept up all the end-of-season individual accolades, taking home the PFA Player and Young Player of the Year awards as well as scooping the FWA Player of the Year gong.
"Great, he has been outstanding this season," he added of Bale.
"He has enjoyed his performances and that is vital for any football player. Managers have to guard against limiting them through too much organisation, but that hasn’t been the case with Gareth who has played in a different position to the one he has played in before.
"Doing that has given him the chance to score more goals which has contributed to his wonderful season, plus he has the ambition to be at the very top."