By chance, reading the autobiography of a Canadian staff officer who talks about how those Shermans were moved from depot to the combat units.
I soon found that most of my time was taken in problems related to tanks and armoured cars and in finding and obtaining the release of scarce or unconventional equipment. Replacement tanks were handled by an organization unique to the British and German armies, the Armoured Delivery Regiment, which in the case of the Canadian Army was the Elgin Regiment. New tanks arriving in France needed a lot of servicing by it before they were fit for action, such as the removal of waterproofing gear, installation of radios, machine guns and arming with ammunition. The principle on which the Elgins operated was that when a tank was lost, it would be replaced by another which was immediately fit for action, complete with another essential, a trained crew. Sounds simple, but the armoured regiments in First Canadian Army were Canadian, British, Polish and Czech, equipped with different makes of tank, Shermans, Churchills, Cromwells and Comets, and within each regiment were variations of the same tank designed for particular functions. The trick was to get the right type of tank to the units that needed them, which involved positioning them physically close to the units before a battle began. This is where I came in.
Every day I received a list of deficiencies for every tank and armoured car regiment in the (1st Canadian) Army along with a report from the Elgins on the number of each type of vehicle available for issue. Based on forecasts of the course of fighting, I then told them where to send them. This often meant moving them by tank transporters, which were usually heavily committed in shifting armoured brigades. Furthermore, every few days I had to bid for our tank needs against those of Second British Army at Headquarters of 21st Army Group. Without going into detail, it kept me busy all day, every day.