At least the Saints have some contingency QBs who are competent and can win (or lose) games but both are turnover prone. Brees was sure turnover prone as well in his last game, sadly.
The Colts on the other hand don't really have a backup who can win more than 4 or so games on the roster. They need to trade for Carson Wentz ASAP. But the Eagles firing Doug Pederson makes that a little less likely. If the Eagles hire a pro-Hurts guy to be HC then Wentz to the Colts is a lock. But if not... what are their other options, tbh? Plenty of QBs on the market with starter experience but not any very good ones. Trubisky, Newton, maybe Bridgewater, Cook, Flacco, etc. Their draft pick is too low to get a first rate QB in the draft.