Well, where to start?
First - CSS to remuster to infantry or "all CSS soldiers infantry first"... Ain't gonna happen. We are far shorter of personnel in the technical trades than we are in the combat arms. We cannot - and I must stress this - maintain the equipment we have now, let alone support the addition of new units or missions. We're at the point where some trades are being tasked by individuals in an effort to fill holes. If we decide to pull people out of CSS trades to go infantry, the Army will collapse; we're not far from it now.
CSS training is controlled by the big purple machine. They set the standards and control intake - not the Army. If the Army required its CSS personnel to undertake three years in the Infantry first, it would result in a huge imbalance in production within the schools. An airforce or navy MSE Op would proceed on training right from basic, while his/her Army counterpart spends his time at a battalion. This would have a knock-on effect in the production of these trades for the Army, reducing the numbers of personnel available. Guys break, get fed up, decide not to leave the infantry, or fail infantry training - all before getting to their "final" trade. In an Army without manning issues, a combat arms tour might be a good thing but right now this is something we can ill-afford.
Finally, I fail to see - when all units are significantly undermanned - how this idea represents any type of "solution". We're merely robbing Peter to pay Paul. We'll have a crunch manning tank squadrons in the next few months, there are increased demands for recce, and we've read repeatedly how valuable the guns are on operations (not to mention the additional tasks we've assigned to the artillery), yet we'll denude these trades in an effort to bolster one element of the Combat Arms. It smacks of desperation and expediency.
There are other ways to address this problem - starting with retaining those soldiers we have.
All IMHO, of course...
TR