"I believe it is the best, yes," Simon told The World Game. "I might be a bit biased, but I think it's there to see. It's just great that we've got that depth in the team."
The Sky Blues have kicked away to a six-point lead after just six rounds of the A-League and their strengths extend well beyond their starting side.
Look at the current bench line-up:
David Carney, 48 Socceroo caps, A-League grand final winner with Sydney in 2005-2006 season, game-changer, goal-scorer.
Milos Dimitrijevic, swept player of the year awards at Sydney in 2014-2015 season, can play holder or further forward in midfield.
Seb Ryall, A-League grand final winner with Sydney in 2009-2010 season, equally at home at fullback or central defence.
Simon, two Socceroos caps, can replace anyone in the front line and adjust to particular role, high work-rate, harasses defenders.
Vedran Janjetovic, regular starting goalkeeper for several seasons at Sydney before Danny Vukovic arrived.
Sydney captain Alex Brosque was also on the bench for the first three games this season while he worked his way back following hamstring surgery.
And Bernie Ibini, back from a horrible leg injury in Belgium last year, can't even get into the match-day squad at this stage.
"The quality in the squad this year goes deep and the competition for places is very strong," Simon said.
"So to even get a spot on the bench you have to be working hard every week and I'm just grateful I'm part of this great squad and getting some decent minutes when I can and contributing as much as I can.
"Some of the players on the bench would probably walk into any other team's starting line-up and then you've got young guys like Georgie Blackwood working hard at training, so the fight for spots is on and it just drives the level of intensity up at training."
Glory had just scored to trail 2-1 in last Sunday's game when Sydney coach Graham Arnold sent Simon on, and he did the job asked of him, making it difficult for defenders and setting up the final goal of the 4-1 win, for Brosque.
"I think coming off the bench like that you've got to try and put yourself about and change the game," Simon said. "They were putting a bit of pressure on us and to be able to contribute the way I did, I'm pleased, and I'm pleased for the boys. I thought we played a good game."