Nope. They will have to enter Ukraine on multiple fronts to get the same effect. They do not have manpower to execute a pincer on a pincer. This is a problem of time. Putins besst option was to respond immediately. It would have transferred the pressure back on Ukraine. But he missed the boat. Every month Ukraine stays put in Kursk, it will increase the Russian manpower requirement. Right now, they need atleast 100k to keep the lines in balance.