Well, Lets take voyager, yes there stuck there with the mostly same crew, that ship was the only show who had a reason not to change characters. However, Harry Kim.. 7 years latter.. still an Ensign.. Bless his heart..
Lets take that ship, in real life, say someone is on the command track, or gets bored of his current billet, they rotate to another division. So, lets take Ensign Kim.. First year or 2, he's in Ops, but then move him around (and others) have him take Beta shift Security under Tuvok, then next year, he's in Engineering with Belana, then maybe hes beta shift conn officer. and he moves up in rank.
On Tng, Riker moving on to another ship, Laforge, Picard would have been at the peak of there profession, so they wouldn't have moved to another ship ( they were serving on the Flagship, no better posting) Worf would have continued on the command track, cycling through all the departments, ending up as a first officer canadite, probably move to another ship if Data was moved up when riker left. Data may not be on a comand track, he's a science/ops officer, and at the top of his track. Or he may move to another ship. One may stay in place for maybe 5 years or so before moving up or over.
Plenty of ideas on how to change up things!
Lets take that ship, in real life, say someone is on the command track, or gets bored of his current billet, they rotate to another division. So, lets take Ensign Kim.. First year or 2, he's in Ops, but then move him around (and others) have him take Beta shift Security under Tuvok, then next year, he's in Engineering with Belana, then maybe hes beta shift conn officer. and he moves up in rank.
On Tng, Riker moving on to another ship, Laforge, Picard would have been at the peak of there profession, so they wouldn't have moved to another ship ( they were serving on the Flagship, no better posting) Worf would have continued on the command track, cycling through all the departments, ending up as a first officer canadite, probably move to another ship if Data was moved up when riker left. Data may not be on a comand track, he's a science/ops officer, and at the top of his track. Or he may move to another ship. One may stay in place for maybe 5 years or so before moving up or over.
Plenty of ideas on how to change up things!