The pair kept their second successive clean sheet in Tuesday night's win at Charlton after impressing against Everton and Villa.
Charlton simply couldn't break through at the Valley with Anthony standing out in the first half, time and again coming out of 50-50 battles with the ball before delivering to a white shirt.
"That was the key for us," said Glenn. "I told them the whole outcome would depend on how Dean and Anthony coped with their front two. This is their third game together and their understanding is significant for us."
The boss will be hoping the partnership will be allowed to flourish further having lost both Goran Bunjevcevic and Gary Doherty to long-term injury by the middle of Spetember last season.
Only Ledley King is missing this time around as Gary, Goran and Chris Perry all battle it out for place in a 4-4-2 or 3-5-2 system. Indeed, Goran has played in a deep-lying midfield role so far this campaign and Gary played up front at Charlton.
Glenn added: "Whatever centre-halves we have available, it is so nice to have two players who have now played tohgerther for the third game.
"Last season we never had our back three or back four intact. It always changed through injury."
Glenn Hoddle says the defensive partnership between Anthony Gardner and Dean Richards has been pivotal in our promising Premiership start.