They have no chance of succeeding. The Russian population, by and large, isn't interested by a military career.
You have to understand a few things about the Russian mindset. The first is that they have gone through two decades of strictly-enforced political apathy. So they're apathetic. The reason they cheered Wagner on is that they thought they had a glimpse at getting rid of Putin, and that seemed to be the first exciting thing in their life. Yes, all the polls say that 90% of the Russian population worships Putin as a living god, but that's just how reliable polls always are in a dictatorship, especially one in which there are strong gravitational anomalies near every window that tend to just suck people out mysteriously...
The second is that, despite all the "patriotic" hype about the military, with theme parks and cathedrals and childhood indoctrination, the military is actually one of the most despised group in Russia. At least the common troops. Soldiers are seen as imbeciles, and those who enlist are seen as idiots. This is largely influenced by how most of the enlisted are indigenous groups from the poorest regions of Russia, as they see this as a ticket out of poverty. So all the racism of the Russian majority that is directed at these population rebounds on the Russian forces as a whole.
It's no wonder that, despite all the (lying) rhetoric about the nation being in danger and fighting a war for survival, the only argument that can actually sway people into enlisting is the promise of very large wages. Problem is, this only works as long as the potential recruits believe they will actually get paid. Stories of how they ended up not getting paid are spreading. This will make people more cautious. If the
only reason you want to fight is to get paid, and you hear you will probably not get paid, why would you go on to risk your life?
Furthermore, there's the mercenary angle. The Russian military is competing for recruits with all the various PMCs. Sure, they're trying to solve this problem by just forcing them to fold into the Russian army; but this is Russia: following the law is for suckers.
And finally, there's Prigozhin's Stunt, which shows that you can get away with shooting down several helicopters and the Russian equivalent of an E-8 JSTARS, and get away with it by calling the Potato King of Belarus. This has done a lot, and will continue to do, a lot to fracture the image of the central power and the legitimacy of its authority.
So yes, let the Kremlin try to triple the size of its army. I'm sure that they'll manage to triple its size on paper, thanks to having a lot of virtual recruits that absolutely need real funds for a new yacht with a swimming pool I mean their equipment and training. But on the ground it will be very, very different, as it has always been in the land that invented the Potemkin Village.
