VCDS is the bureaucratic face of the CAF with the central agencies of government (PCO, TBS, Finance, PSPC, ISED...)
It's an institutional leadership role, not a command role.
NWOs as a rule do not fare well in institutional leadership roles, as they require skills not prioritized in RCN progression models.
VAdm Topshee lacks force development experience and lacks experience engaging with central agencies - both key elements of the VCDS portfolio.
I hope he will be successful; but I have my doubts.