Using PERT deliverable/vertices redundancies is often necessary for projects no one has seen before:
https://en.wikipedia.org/wiki/Program_evaluation_and_review_...
Note, the simple system uses probabilistic time estimates of key deliverables, considers redundancy, and explicitly mitigates teams that introduce liabilities.
If it put people on the moon, than I figured it was good enough for most of my ridiculous projects. Have a great day =3
Rule #17: "Always listen to the person that signs your paycheck. Everyone has an opinion, but some opinions are more profitable than others"