Maintenance routine

Is it a good idea to do a maintenance routine in between two different routines?

For example before you start to gradually increase the intensity of the exercises, but HAVE already made gains with the previous less intense routine (and said gains are stalled) .

I don’t think I’d bother . I’d just do my new routine .

If you’ve stalled in gains , the new routine will re-start them .

dooks out !!!