Not quite sure what is being proved here by the figures. For example, Nutloose, USAF have 5573 ac (from Wiki) and 14,045 lt cols! USAF also has 10,082 cols out of a total strength of 328,532 (from AF Personnel Centre website) - this is over 3%. Compares pretty well with the RAF's 0.77% (from Wrathmonk).
As wrathmonk points out, a lot of posts have been civilianised, particularly at technician level - but why would we expect this to result in significant senior officer reductions? If all of Marham's second line engineers turn into civilians for example, where is the logical saving in posts above wg cdr level?
However, who wants to let logic get in the way of a good rant - 2 rings good, 4 rings bad, senior officers, OUT, OUT, OUT!