Russia trying integrate people into decimated units in Ukraine

 ISW:

Russian forces have not abandoned efforts to reconstitute forces northwest of Kyiv to resume major offensive operations, and the commander of Russia’s Eastern Military District (EMD) may be personally commanding the operations. The Ukrainian General Staff reported that Russia’s 35th Combined Arms Army is rotating damaged units into Belarus and that Russian forces established a command post for all EMD forces operating around Kyiv in the Chernobyl area. Ongoing Russian efforts to replace combat losses in EMD units and deploy additional reinforcements forward are unlikely to enable Russia to successfully resume major operations around Kyiv in the near future. The increasingly static nature of the fighting around Kyiv reflects the incapacity of Russian forces rather than any shift in Russian objectives or efforts at this time.

Ukrainian forces continued to conduct limited counterattacks in several locations, recapturing territory east of Kyiv, in Sumy Oblast, and around Kharkiv in the past 24 hours. Ukrainian counterattacks are likely enabling Ukrainian forces to recapture key terrain and disrupt Russian efforts to resume major offensive operations. Likely escalating Ukrainian partisan operations around Kherson are additionally tying down Russian forces. Russian forces continue to make slow but steady progress in Mariupol, but Russian assaults largely failed elsewhere in the past 24 hours.
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The Ukrainian General Staff continued to report Russian difficulties to replace personnel and equipment losses. The General Staff reported on March 27 that Russian forces are increasingly using old and substandard ammunition, leading to a rise in the rate of accidents at Russian arsenals and depots, particularly highlighting the use of old munitions by the 35th Combined Arms Army’s 165th Artillery Brigade, operating northwest of Kyiv.[1] The General Staff additionally stated that Russia has deployed up to nine logistics battalions and up to five “main logistics centers” to Ukraine to solve ongoing supply challenges.[2]
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I suspect the reconstituted forces probably have no unit cohesion at this point.  At best, they can probably tie down a foxhole and hope to survive a Ukraine counterattack.  

The old munitions were probably poorly stored like much of the other equipment the Russians have seen breakdown or fail in actual combat.  This suggests the Russian's rear was as poorly managed as the troops have been.