I'm in agreement that there's no reason to be spending money on these back-end starters when they'd be of no real use to us, at least right now. We don't have the luxury of putting money into insurance policies.
Catching wise, I'm very strongly in favor of bringing in Soto - that really could make a large improvement. Met catchers last season were the worst in major league baseball with 5 HR and a .567 OPS. That was 13 HR and over 150 points, respectively, below the NL average. Yes, Soto too was awful in 2012 but he's just 30 years old and has a .776 career OPS, including .891 against lefties. This is undoubtedly a risk worth taking. Flores, on the other hand, has a .663 career OPS and only .730 against lefties.