no we cannot because you have misrepresented it yet again.
roy has had no where near the investment wafa had. and if you can't admit that then it's like taking to wall. rafa spent a lot more money on every position on the pitch.that's a fact. roy hasn't even been able to build his team yet.
Are you comparing Rafa's spending prior to H&G's take-over of the club (and their first transfer market when they did actually invest in the squad), then happily ignore the next two seasons when Rafa had to sell many of the players he bought on the back of his CL and FA Cup success just to try improve squad depth (which mostly failed, and simply because when you're shopping in the 5-10 million bracket it's pretty hard to come up with a world-beater every time), in order to make the assertion that Roy has had less investment? Come on.
I'd rather hear you saying "Rafa was a good manager when he had squad investment, but couldn't keep it up without". That at least is fair - his buys after H&G controlled his funding are of significantly poorer quality than Reina, Alonso, Mascherano, Torres etc who he bought prior to it. At least try to put two and two together here.
When you have to sell oranges in order to buy apples, then everyone is going to ask why you have no oranges. Is that fair to you? No, it isn't.
Roy had exactly the same amount of investment (actually more, because Rafa didn't even get Alonso's money) yet he did much the same average-to-bad job in the transfer market. This explains why Roy's a much better manager, right? No,
it doesn't prove anything.