BBC Sport pundit Jonathan Davies believes that Andrew Hore is not the right man to take the WRU's Elite performance director role.
Hore's fitness work with the Wales squad was highly praised
Ex-Wales fitness coach Hore is favourite for the post, and is likely to be named in the next few days.
But Davies feels that Hore is not the right choice to take Wales forward.
"We need someone who knows rugby coaching at all levels. The guys are fitter and stronger than ever, but game awareness is lacking," said Davies.
The BBC understands the Kiwi's role will be to ensure top players reach potential and to increase competition for places in the Wales team.
His appointment would come at a time of turmoil in the Welsh game following the premature exit from the World Cup.
And although Davies admitted that Sweetenham and Hore were extremely competent at their jobs, the were not right for Wales.
He said: "Andrew Hore is a fitness guy, the other person mentioned, Bill Sweetenham, is a swimming coach.
"What we need is a rugby coach."
Hore's fitness and motivational work is regarded as one of the key elements of Wales' 2005 Grand Slam success.
In three years (2002-5) he helped turn a team struggling to compete physically with the top nations into one of the fittest sides in the world.
He also fought for the Union's state-of-the-art Vale of Glamorgan training facilities and established nationwide conditioning programmes.
When he left for an elite development role with the New Zealand Rugby Union, Hore was critical of the structure of the Welsh domestic game which he believed held back the national side.
His input at WRU board level on such matters would now be crucial as the Union conducts a post-World Cup review of the elite game.
Another name linked with the job was former British Performance director for Swimming Bill Sweetenham.
Former Wales coach Kevin Bowring had been favourite for the position likely to be taken by Hore, but he has chosen to extend his contract as head of elite coach development at the Rugby Football Union in England.
The Welsh Rugby Union announced a global search for the EPD in March, the position mirroring that of Rob Andrew at the RFU.
Hore's worked with Wales and the players rate him very highly - given that, he's off to a very good start
And Ospreys scrum-half Justin Marshall agrees with Jonathan Davies that Hore is not the right man to take the Elite Performance Director role with the WRU
He said: "Andrew Hore is very good at what he does and that is fitness.
"He doesn't need the extra tag of Elite Performance Director and if the WRU want him, it should be for what he does and that is fitness."
Former New Zealand and current Ospreys scrum-half Marshall also backed his old Canterbury and All Blacks coach Robbie Deans for the Wales head coach job.
"Deans is a professional coach who delivers in all aspects of modern coaching, but most importantly on the field," Marshall told BBC Sport Wales.
"He has an excellent record and is probably the finest coach I've ever worked with.
"I don't know if he'd want the Wales job. International rugby is the ultimate for any coach, but he may hold out to lead his own country."
Marshall was critical of the way the WRU handled the sacking of World Cup coach Gareth Jenkins.
"Regardless of whether you're doing a good job or not, in employment you're entitled to a review process," he said.
"A similar dismissal happened to [New Zealand coaches] John Mitchell and Deans after the World Cup semi-final loss to Australia in 2003.
"I was critical of the New Zealand Union then, but even they left more than a morning for reflection."