Send in cannon fodder conscripts. Keep the more reliable troops in reserve allowing the conscripts to reveal enemy strengths and weaknesses. The apparent incompetence of the conscripts give the enemy a false confidence that is crushed by more hardened and reliable troops using strategy development from real time combat action from the cannon fodder.
They already seem to have sent their best, including the “active” conscripts. Russia has relatively few professional soldiers in its maneuver units (armor, infantry, field artillery). Most of the pros are specialists in tech branches or in the Air Force and Navy.
To win a war of attrition vs Ukraine I think they will have to call up the conscript reservists.