Once you've executed on enough of these contracts, you develop an idea of what the unknown-unknowns are and plan for them.
It's government work, which automatically means access issues, dozens (or hundreds) of stakeholders requesting meetings, internal politicking, back-and-forth over change requests, etc. All of that costs real money and if you don't plan for it or make contingencies, you're going to be screwed.
These issues are not just limited to government either; any sufficiently large entity will have these same problems. So yeah, one person-year is a reasonable minimum viable contract period unless you have a process in place to fast-track RFP approval.
It's government work, which automatically means access issues, dozens (or hundreds) of stakeholders requesting meetings, internal politicking, back-and-forth over change requests, etc. All of that costs real money and if you don't plan for it or make contingencies, you're going to be screwed.
These issues are not just limited to government either; any sufficiently large entity will have these same problems. So yeah, one person-year is a reasonable minimum viable contract period unless you have a process in place to fast-track RFP approval.