Maybe I missed it but Typhoon was supposed to break the mould.
Logistics support was on a 4 Nation basis. The "hole in the wall" was going to provide spares on demand from whichever country had the spare on the shelf. Good so far.
The catch was, Nations estimated how many spares they needed and stated the requirement. The UK MOD (read Treasury) decided we couldn't afford that many spares and cut back on our provision (read "cash"). Fail to fill the spares bucket and you get less access to spares.
Now we're short of spares. Go figure!
Anyone familiar with the RB199 saga in the 90s will understand my point.
Like all Strategic Defence Reviews, the reality hits home many years later when it really matters.