Because it is the exactly that sort of will to win which the teams they have been playing in the Irn-Bru Third Division have used against them.
I must confess I could just not see the Light Blues beating the SPL leaders in the Scottish Communities League Cup on Wednesday night.
The pace, strength and experience of Stuart McCall's team would, I thought, be too much for Rangers, especially given how they have been playing in the last few weeks.
A big part of the problem for the Gers this season, away from home in particular, has been their work rate against far smaller, part-time clubs.
Well, there was nothing wrong with their approach at Ibrox in midweek.
They played superbly from the first whistle. They really got at the visitors, attacked them, and got into their box frequently.
I felt the youngsters in the team grew up. Every time I see Lewis MacLeod I like him more and more. Kyle Hutton, who replaced Francisco Sandaza, was outstanding.
And as for Fraser Aird, he was unbelievable. He ran past opposition players on the outside, he cut in and went for goal. He was like a traditional winger from the old days.
I thought Dean Shiels, who set up Lee McCulloch for the opening goal and scored the second, had his best game in a Rangers shirt.
All of a sudden, the two centre-backs, Ross Perry and Emilson Cribari, started tackling and winning headers in the air. It is the first time I have seen them do that. They both produced massive personal displays.
There's no doubt about it, the performance and the result against Motherwell are feathers in Ally McCoist's cap.
There were only two players, McCulloch and Lee Wallace, involved who had been in the Rangers starting line-up that took to the field against the Fir Park side at the end of last season.
I thought McCulloch was immense and really showed why he is now the Rangers captain. Despite his advancing years, he led the front line well. He is the perfect man for the club to have as their skipper in their current situation.
But this Rangers team has now set the benchmark. They must show the same attitude against every team they play in the Third Division – and against Forres Mechanics in the William Hill Scottish Cup at Mosset Park tomorrow.
If I was Ally, I would be sitting the players down today after training, showing them a video of the Motherwell match and saying: "This is how every team is playing against us – and this is how we must play from now on this season."
Wednesday night has to be the standard of performance they must aspire to every week. Forres Mechanics may play in the Highland League, but you can be sure their players will be right up for the game, and will be looking to make names for themselves.
The Rangers players are far better than those they come up against on a weekly basis now. They know that. But crucially they must have the same determined attitude. That has been an issue.
The team gelled superbly this week. It was encouraging when you consider that David Templeton, an individual who may, in time, become the main playmaker, and Andy Little, a prolific scorer, were both out injured.
It falls to the experienced players, McCulloch, Wallace and Ian Black, to lead the way and to show the younger players what is required.
The crowd got behind their team magnificently and generated an amazing atmosphere. There were 30,000 inside Ibrox, but, with the noise they made, if felt like a full house of more than 50,000.
And if Rangers continue to perform like they did against Motherwell then they can be guaranteed the same sort of backing.