Former England captain Lawrence Dallaglio would welcome the appointment of Dai Young as London Wasps' new director of rugby.
Young had been due to meet Blues chiefs on Thursday ahead of a proposed move to the English side.
"It's a great move," Wasps board member Dallaglio told BBC Radio 5 live.
"He's got a lot of experience. He's done very well in Cardiff."
Wasps have been without a full-time director of rugby since Tony Hanks' departure in February 2011.
Dallaglio and Young were team-mates on the British and Irish Lions' successful tour to South Africa in 1997.
And Dallaglio, twice a Heineken Cup winner with Wasps, believes Young possesses the credentials to be considered for the role at Adams Park.
"Dai Young was an outstanding player for Wales [and] for the Lions," said Dallaglio.
"I understand he was very close to getting the job at Leicester [before] they chose Richard Cockerill.
"He was also very close to getting a job at Harlequins. He's obviously got an appetite to coach in a different place."
Cardiff Blues chairman Peter Thomas has said the region want to keep Young but would not stand in his way should he wish to move.
"Dai knows our position very clearly," Thomas told BBC Sport Wales. "We rate him very highly.
"He is a massively important part of the Cardiff Blues set-up. He's got our highest respect and regard.
"There's no way we would want Dai Young to leave the Cardiff Blues."
Wasps finished ninth in last season's English Premiership so Dallaglio believes there would be hard work ahead of Young if he moved to Wasps.
"They had a disappointing season last year," added Dallaglio.
"I don't think it's any magic wand stuff. It's going to take a bit of time to get them back where he wants them.
"There's still a lot of very good talent at the club. It's a good appointment and a real challenge for him."