Comment by makestuff
12 hours ago
I have been part of a few migration projects like this. There is another issue apart from tests not existing. Business/Product still want new high priority features so developers keep adding new logic to the old system because they cannot be supported by the new system yet.
The secret sauce is being able to operate below your maximum effectiveness while still seeming impressive enough. That is, if you want to play the long game and get a lot done over a 5 year horizon.