A recent roster proposal in Dublin had ATCOs work the cycle 6 on 3 off, 6 on 3 off, 7 on 2 off.
Seven days in a row? I, for one, just manage to scrape through the E on day five of the current cycle.
Can you imagine working on day 7 and our state of the art system decides to go belly-up again.
If the system cannot stay up and running, the very least we should be doing is making sure ATCOs are.