The Red Army was not a "throw more soldiers at them" kind of army. They were one of the best equipped forces in the world by 1944; the early part of the German-Soviet war saw massive losses partially because the USSR was still building up its industrial might, but several factors (including the American lend lease and some excellent Soviet weapon designs) allowed the Soviets to quickly and effectively equip a huge number of divisions.

The Germans estimated a Red Army of 50 divisions in 1941, prior to their invasion, and believed that the USSR would only be able to mount a defence of 100 divisions at most. They were correct in their 1941 estimate, but the Red Army was fielding 600 divisions by the end of the war, with excellent supply status for the vast majority of them. It's not true to say that the Soviets simply threw their own men at the Germans.

(Sorry to write a lot, I just dislike the "Red Army meat grinder" myth. They were actually one of the best equipped armies of the war!)