Andy Halliday and fellow ex-Rangers star agree on 'incredible' James Penrice in Celtic win
The 27-year-old left-back joined on loan from AEK Athens this summer, bolstering Derek McInnes' left-back depth.
Having racked up plenty of experience in Scottish football with the likes of Hearts and Livingston, it was hoped he'd hit the ground running at Ibrox.
Penrice has certainly done that, starting all of his first four Scottish Premiership games and banking excellent displays in them.
McInnes again started him at left-back in Sunday's 1-0 Old Firm derby win, and was tasked with keeping Camilo Duran quiet.
Celtic's dangerous Colombian forward wasn't in the game, with Penrice silencing his threat as well with an all-round superb afternoon's work.
Why did Andy Halliday think James Penrice caught Celtic off guard?
Penrice is an adventurous player, but he's a full-back by trade and a defender first.
Given how strong Celtic's forward line is, it would've been wise to assume McInnes would place more of a defensive responsibility on him on Sunday.
Speaking on Premier Sports via BBC Sport, however, Andy Halliday has explained how McInnes' Penrice plan has worked to perfection in the win.
"James Penrice has stepped into midfield to create an overload and it looks like it caught Celtic by surprise," the ex-Gers star said.
Halliday wasn't the only former Bear to wax lyrical over Penrice's impact against the Hoops either.
Also speaking on Premier Sports via BBC Sport, Alan Hutton said: "James Penrice is doing an absolute power of work, it's quite incredible."
It's Halliday's point about Penrice stepping into midfield, however, that presents a fascinating possibility for McInnes moving forward.
Penrice could yet rescue Rommens' Rangers prospects
With Tuur Rommens currently sidelined with a groin problem, Penrice has taken his chance at left-back with both hands.
As a result, it now seems very tough for the Belgian to oust the Scotsman from McInnes' starting XI when he returns to fitness.
But he may not have to, and instead, Halliday's assessment reveals a potential pathway to getting them both in the same side.
Penrice clearly has the tools to play further up the pitch as a winger, or perhaps even on the left of a central midfield pairing.
Nudging him further up the pitch would free up Rommens to reclaim his left-back spot, whilst possibly unlocking even more out of Penrice.
As per FotMob, Penrice is averaging 1.32 chances created and delivering 1.84 successful crosses per game in the Scottish Premiership this season.
So, if Rangers natural wingers aren't hitting the mark, watch out for McInnes pushing Penrice on and opening up a Rommens route back to Ibrox relevance.