Rory Best believes Jordan Larmour or Jacob Stockdale should be the leading starting options ahead of James Lowe on Ireland's left wing.
The former Ireland captain was speaking to RTÉ's Game On in the wake of Ireland's three-point victory over Scotland at Murrayfield in the Six Nations where Leinster's Lowe struggled defensively at times.
While Best backed Lowe to improve the defensive side of his game, he is hoping to see Larmour and Stockdale in contention for a starting spot on the opposite flank from Keith Earls.
"At the end of the day, [Lowe's] a smart rugby player and he's a good rugby player, so he'll fix those and he'll be better for it and Ireland will potentially be better for it. The big question is whether he is one of your starting wingers even before that game," he said.
"I think it was a shame to see someone like Jordan Larmour on the bench. Obviously, Jacob Stockdale is just coming back from injury.
"I think what Ireland need, if you're going to play Keith Earls on one wing, who does so much for the team in terms of his work-rate, the way he talks, the way he leads the defence and the way he leads kick-chases, I think you nearly need somebody else on the other wing that can create things out of nothing and Jordan and Jacob have that ability and for me that's probably the big thing.
"I would love to see one of those two starting. But James Lowe, there's no doubt he's going to get better for it and he is going to be a better player.
"But is he the best player for Ireland right now in that position, I'm not sure."
Meanwhile, with British and Irish Lions squad places up for grabs, Best backed back-row Will Connors and second-row Iain Henderson to factor in Warren Gatland's selection plans for his pack.
"There's a lot talked about Maro Itoje and James Ryan will be fairly nailed on and Jonny Gray's doing well. But I thought Iain Henderson showed Sunday that he potentially offer more to the Lions than a Jonny Gray," he said.
"I think Ireland and Scotland were vying for a lot of the same positions. You look at out-half, even some of the centres and I think Ireland overall came out better."