In 1954 an executive order of 14 Oct 1954 reduced the amount of administrative personnel by 450 thousands.
The amount of metrics went down from 9 940 to 6 308 in 1954, to 3 081 in 1955, and to 1 780 in 1958.
Khrushchev moved most of the planning power from central planning institution to the regions and down to the factories and enterprises. What previously was strict targets from the center now became soft suggestions.
Article misses those basic things completely and instead goes into tangential theoretic topics and even goes to state things like that:
central planners preferred to use the CIA’s analyses of certain Russian commodities rather than reports from local Party bosses
Source: the comment #162 in some blog. Talking about quality of the data...