Yeah - it looks like it will happen that way!
MoD and armed forces shakeup – in detail
This means that "the service chiefs will no longer need a four-star commander-in-chief" to have alongside them. Levene says that because service chiefs will be less involved in strategy, there is also no need for them to be based at the MoD headquarters in Whitehall. Instead, they should relocate to their individual service headquarters.
.
.
This is one of Levene's core recommendations: that a new JFC should be created and headed by a "military four-star" – the second highest rank possible – who reports directly to the chief of the defence staff.
He says that the days of senior personnel being in post for a short period must end – recommending that a four-year to five-year posting is appropriate, rather than a two-year one.
....and there goes your "enrichment" 1* posts! Four to five-years posts of course means that the number of senior rank levels must reduce by at least 2 so that it is possible to get to the very top before retirement! All very cunning really.