Pardew's belief that referees should team up with full-time assistants was only strengthened in the wake of the incident in the Magpies' 2-1 defeat at Wigan during which the French full-back was carried off with what looked at the time like a serious knee injury.
Unsighted referee Mark Halsey took no action over the tackle, and McManaman escaped retrospective action because one of the officials did have a clear view and deemed it fair.
Pardew said: "Sometimes it's good to reflect on the situation and how it was dealt with.
"I feel particularly aggrieved about the fact that we haven't got professional linesmen in the Premier League. With the money and the finance we have, they should be a team.
"I would be very interested to know how often Mark Halsey, the referee, has worked with the two linesmen on the day because I think they should have a team that travels around together and works together and therefore can trust each other 100 per cent, because that's where it fell down."