This was anticipated on 7/12/2022 in (CNN) Generals Wesley Clark vs. Mark Hertling; Are Weapon Stockpiles Sufficient? Quoting,
This applies to a hypothetical high intensity conflict. The unmet near term need is the response to possible Russian mobilization, best served by hot production lines, and additional contracts for long lead-time parts, such as sensors.
Since then, it has become evident from Ukraine casualties that U.S. and Western smart weapon preference has one doctrinal deficiency. While Russian use of low cost massed artillery facilitates avoidance of small-arms combat, the high cost of smart weapons prohibits symmetric use. HIMARS inventories cannot support routine use that inspires the joke name “grid square removal weapon.”
There are some indications that Ukraine is receiving some supplies of 152mm shells from a third country. Perhaps a gun swap could be arranged as well? Quoting Stalin,
Though Stalin’s faith in quantity brought savage carnage to Russians, a kernel of truth is adaptable to Western thinking.