Methinks most Witnesses would claim that although Raymond Franz was an anointed Christian before and during his stint with the Governing Body, when he "apostasized" and was disfellowshipped, he lost that "anointing", became a member of the "Evil Slave" class, and was to be replaced. However, the replacement of an "unfaithful, formerly anointed" individual need not be immediate, but rather, take place after the passage of some time (perhaps several years). Thus, the number of recognized anointed members of the "Remnant" will fall both because of death AND upon their defection from the "one, true Faith" []. Accordingly, it could be (but need not appear as) a one-for-one replacement because the cumulative defection of not-yet-replaced Evil Slaves could take place over several years, followed by a total replacement in a SINGLE year. If the number of recognized replacements exceeds the number of those who have died faithful since the previous Memorial, the total number of "anointed" will appear to increase. Of course, such an explanation is necessary only if the number 144 000 be literal.
BTW, supposedly my own crown is up for grabs; when will I be replaced?