Independent estimate / supplier proposal review
Time and time again, the software industry struggles to come up with accurate estimates for software development projects, releases, or sprints.
There can be a lack of understanding of the performance of development teams. This can be combined with low-maturity estimation processes (not mitigating for human bias). The result may be overly-optimistic project estimates. These have a highly probability in resulting in failing projects, high costs and schedule overruns.