BD is being slightly economical here..
there were a number of recommendations which NATS implemented
NATS response to the Uberlingen report was kept confidential to the NATS board only. Copies were, and still are, not available to the great unwashed, unless BD wants to furnish one. ( At the time I ASKED for a copy, and I have ASKED subsequently and been denied, twice... so much for "open and honest")
Also....
staffing was not the issue.
.Except that at the time of Uberlingen NATS
was trying to reduce night manning at Swanwick to a single Tactical controller per sector (documented by the union and here on PPruNe). This was hastily dropped, but there's no getting away from the fact that NATS management at the time seriously desired to implement single sector manning.
Hopefully things are more "enlightened" now. (and yes, I think they are!)
Best rgds
BEX