However, it is the conclusion of discussions on a new and improved contract for the manager that will be the most important piece of business according to the 36-year-old.
Talks have resumed on improved terms for Warburton and the sooner this is completed the better, as far as Miller is concerned, as it is the cornerstone of what Rangers hope to achieve.
He said: “If he can extend his contract then it would be the biggest signing of the season for us.
“I can’t speak highly enough of the job the manager and Davie Weir have done to attract players and the lengths they have gone to sign players.
“They have gone way above the call of duty to get these kind of players and it speaks volumes for the manager that he has sold it to these players.
“This club doesn’t need sold to anyone, but to get them to want to come and play I think he has done a fantastic job.
“Clint Hill, Joey Barton, Niko Kranjcar – they have real experience at a top level and when you couple that with the younger lads like Matt Crooks, Jordan Rossiter and Josh Windass, they have huge potential. The balance we have got so far is spot on.
“We needed numbers but it was the right numbers, the characters, the quality. There’s no doubt the manager has got exactly what we needed and there are still more to come.
“But these guys are coming to Rangers off the back of the manager being here because of his influence when he’s met them.
“Of course, this football club is a huge attraction. I’ve said many times it doesn’t need to sell itself. But it takes someone with the manager’s vision and appetite to go and do what he’s done and it’s crucial for me that we keep him.”
Like many, Miller is becoming tired of what seems to be a daily ding-dong between Barton and Celtic captain Scott Brown, even if it is manna from heaven for social media types.
However, he has no doubt that Barton will be a massively important player for Rangers in the season ahead having already made a positive assessment of the man when they played golf together before the Scottish Cup final.
Miller said: “You can have ideas about people but you don’t know them till you actually meet them.
“For me I’ll make my judgements on someone only when I meet them. To be honest I thought he was brand new.
“He has played at a high level. Outwith that, there is the leadership and the experience he is going to bring. He is a big voice and a character in the dressing room, which is what you need.
“He is a winner. The more of those kind of characters you get in a dressing room and a team the more chance you have got of succeeding.
“A lot has been made of Broony and Joey going head-to-head and they are two good players, two guys who will be giving everything for their team.
“I am a bit bored of it, it is getting a bit old already! It is all tongue and cheek. It is only good for the Scottish game.
“There has been a lot said about Celtic appointing Brendan Rogers, Joey coming, Niko signing, they are huge signings for the Scottish game and that can only be good.
“With us being back in the league, and everything that has come out since the fixtures have been released, you can see that the whole league and game has missed us being in the top flight.
“It brings an excitement and attention to our game that has not been there for the last three or four years. In terms of Joey and Scott, it is all tongue in cheek and come 10 September when that game comes along it will be an interesting battle.
“With the age he is at and the experience he has got; I have absolutely no doubt Joey will handle it.
“We are talking about a player that has played at a top, top level all his days. He is coming up here and yes it is going to be a new experience playing in this team, this league and in an Old Firm game, but with the experience he has got and the level he has played at I am sure he will come up here and relish it”