Ex-Wales & British & Irish Lions centre Tom Shanklin praised Gatland for “transforming” the national side during his first spell in charge, but said Wales now lack an identity.
“I’ve never seen him like the way he was after the Australia game. I feel sorry for him after all he did for Welsh rugby,” said Shanklin.
“But there has to be accountability for this run and not just from the head coach, but the WRU as well.
“Warning signs have been ignored about too much focus on the national side and not enough on the regions and academies to develop players.
“Gatland offered a short-term fix when he returned, but now it’s time for a new coach with a fresh voice bringing fresh ideas.
“We can’t play physical rugby any more because we lack size or power, but we’re not seeing a plan B and there hasn’t been any progress.”
Shanklin’s fellow Grand Slam winner James Hook agreed it was time for a change after just six wins in 23 Tests since Gatland’s return.
“What is going to change if Warren is still in charge for the Six Nations?” he asked.
“You don’t want to see anyone lose their job, but it feels that something has to change to freshen everyone up, players and fans.
“But we also need to invest in other areas such as the academies. They’re not good enough and we’re setting up a lot of young boys to fail.”