[Brekkie]

I think if they are going for permanent hosts and if it is Ben and Cat. I would go for Ben and Cat on Monday and Tuesday and then have Dermot and Alison on Wednesday and Thursday. Then have a random fun pairing on a Friday. Josie and Rylan or Craig would be good.

I think in that case they'd split the weeks rather than days, but could work - but they could do it without adding Ben and Cat to the mix.

Have to wonder if Alison and Dermot will end up the main hosts a year down the line anyway although Ben and Cat are clearly too safe rather than too risky so that's not as inevitable as it might have been. "Ben and Cat" does sound more likes a cartoon series though.