Just buy Airbus! If you don’t want problems!
On a more serious note, it’s certainly an option. The whole 737 fleet will need to be cycled out in the mid 2030s. Wouldn’t be it great if Virgin got a deal with Airbus, A220/320/321/330N, for a refleet from next decade. They often provide type ratings as part of the deal, and you would think they would get very sharp pricing as they would be securing a new very long term customer with over 100 aircraft required. If you have a look at the Virgin fleet lists, and assuming these MAXs are on a 10 year lease which is the norm, the timing is pretty good to start removing the 737 fleet and changing over later this decade and be completely out in the 2030s as leases start to fall off. Forget the MAX10 it’s over.
One can dream!