If it didn't take a team to design what you use then it probably won't take a team to design a fallback. But the difficulty doesn't excuse not doing it, if you don't have a fallback for whatever you pick, pick something simpler.

Ideally we keep stuff running, but I don't want to be the kind of person who just tells you that we've got it. You need to know your airbag might fail so that you take your seatbelt seriously.