Matt Le Tissier told Soccer Saturday David Luiz should be playing as a forward rather than a defender.
The Brazilian centre-half set Chelsea on course for a comfortable 3-0 win over Bolton at Stamford Bridge with a fine finish which Le Tissier said any striker would be proud of.
"It wasn't an easy chance by any means but he took a touch and bent it into the far corner and showed a technique a centre forward would be proud of," said Le Tissier of the error-prone defender.
"You look at the way he defends and how comfortable he looks when he gets in the opposition box and think he is playing in the wrong position.
"All his better attributes are most suited to being in the last third of the pitch, while all his worst attributes are least suited to being in the defensive third - and he is a liability there."
Landmark for Lampard
One Chelsea player who has mastered his position, though, is Frank Lampard. The Blues midfielder capped off the victory with his 150th career league goal, after Didier Drogba had doubled the advantage, and Le Tissier had nothing but admiration for the England man.
"150 league goals from midfield is phenomenal," he said. "I can't speak highly enough of Frank's goal-scoring record.
"Today he did what he does best: he ghosted into the box and volleyed into the ground and past the goalkeeper to seal the win."
Lampard, along with Ashley Cole and Michael Essien, returned to the starting line-up after being left out of the midweek Champions League defeat to Napoli but Le Tissier wasn't convinced the trio's inclusion in Italy would necessarily have affected the result.
"In the first half Chelsea were very lacklustre," said Le Tissier. "They didn't look at the races at all. They had a couple of half-chances but looked a shadow of themselves.
"It was only when they got in front they started to play with a little bit of confidence and a little bit of freedom.
"Once that first goal had gone in Bolton were very deflated. They haven't got a great record bouncing back this season and when they lost the first goal they resigned themselves that the game was lost."
In fact, says Le Tissier, there were few positives for Bolton fans to take from the game.
"Bolton fans can't take a lot from this," he said. "Ryo Miyaichi looked useful on the left hand side and going forward he looks like he's got ability. Although, defensively, he should have cleared Drogba's header off the line for the second goal."