Russia's new effort in Ukraine not showing any success so far

 ISW:

Russian forces continue to make little to no progress in frontal assaults to capture Donetsk and Luhansk Oblasts, their current main effort of the war. Russian units in Donbas face growing morale and supply issues. Additionally, the Ukrainian defenders of Mariupol have outperformed ISW’s previous estimates and continue to hold the city. Russian efforts to generate replacements from reservists and feed damaged units from northeastern Ukraine into frontal assaults in eastern Ukraine are unlikely to increase their chances of success.

However, Russian forces advancing from the Kharkiv axis are setting conditions to resume offensive operations through the city of Slovyansk to link up with other Russian forces in Donbas and encircle Ukrainian defenders. Russian forces captured Izyum (southeast of Kharkiv) on April 1 and have conducted active preparations to resume offensive operations for the past three days—stockpiling supplies, refitting damaged units, repairing the damaged bridge in Izyum, and conducting reconnaissance in force missions toward the southeast. Russian forces will likely begin offensive operations towards Slovyansk, 50km southeast of Izyum, in the coming days.
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Degraded Russian forces in northeastern Ukraine continued to withdraw to Russia and are unlikely to be effective elsewhere, despite ongoing Russian efforts to redeploy them to eastern Ukraine. Ukrainian forces are conducting operations to clear Russians left behind in the withdrawal, and Russian forces are unlikely to hold any cohesive defensive positions. The Ukrainian military reported that elements of Russian VDV (Airborne) units withdrawn from northern Kyiv flew to Belgorod, Russia, on April 4. These units are understrength, missing equipment, and likely highly demoralized. Russian servicemen from the Kyiv axis ordered to renter combat operations may desert or refuse orders, which has occurred in several Russian units throughout the war—including several units that had not yet entered combat.
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Russian forces already deployed to the Kremlin’s main effort in eastern Ukraine are highly demoralized and do not have a cohesive command structure. The Ukrainian General Staff reported on April 4 that Russian forces are attempting to create an operational group and expand control structures to “prepare for an offensive operation in eastern Ukraine” and are continuing to deploy additional forces to eastern Ukraine.[1] Russian officers will struggle to develop a new command structure from highly damaged units while simultaneously attempting to continue offensive operations. The Ukrainian General Staff reported on April 4 that losses of the 33rd, 255th, and 294th Motor Rifle Regiments of the 20th Motor Rifle Division (part of the 8th Combined Arms Army and likely active in fighting in Donbas or Mariupol) amounted to up to 40% of equipment and personnel, and surviving servicemen are attempting to leave the military.[2] Ukraine’s Military Intelligence Directorate (GUR) separately reported that it acquired a document signed by Deputy Southern Military District commander Pyotr Gibert indicating that Russian officers are compensating their troops with the promise of additional leave days due to the inability to pay promised monthly salaries in cash.[3]
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The ISW does not report on the war crimes attributed to Russian soldiers that are generally more covered by the mainstream media.  What those crimes demonstrate is a poorly trained military that is also poorly led.  It is another element of why the Russian operation has been such a disaster for Russia and its victims.  The Russian leadership is now trying to salvage something of their operation by focusing on an area closer to the Russian border.  But, as reported, they are doing it with troops with little unit cohesion who have already been defeated in their previous efforts.  It appears that few if any of the original assumptions of the Russian leadership were valid.