Yes the right person should be able to handle any or all of it. If you don't do it right it won't necessarily be more suitable than it already is, and when tha

Yes the right person should be able to handle any or all of it. If you don't do it right it won't necessarily be more suitable than it already is, and when that's the stakes there's got to be a responsible individual who can put in full-time effort however much it takes, with the resources appropriately allocated to back it up. The same CTO needs to be capable of single-handedly being the only "tech" employee, served by their own carefully orchestrated select contractors, or at the other extreme capable of building an in-house team to make things better from the ground up if more beneficial. One person will have to make sure it comes out better than it is no matter what, or it's less likely to come true. Regardless, it can be like servicing airplane engines in flight, so that's another outstanding skill to keep an eye out for.