> If vendor A says the feature takes 3 months, but vendor B does the feature in 3 weeks, then it it's pretty clear who the customer is going to want to go with

> If vendor A says the feature takes 3 months, but vendor B does the feature in 3 weeks, then it it's pretty clear who the customer is going to want to go with. That is until three days after launch when the module vendor B wrote keeps formatting end users' hard drives. Man, I wish this didn't resonate. I once worked as the lead at a company that decided they wanted to build a mobile app. This wasn't something I or the team had done before, but after researching and considering the features I gave an estimate of 6 months for us to get up to speed and deliver a working app. They brought in a contractor who said 2 months, working beta in 1. I pushed pretty hard against this but lost. 2 YEARS later the contractor finally delivered an app they declared "done". It technically worked but was slow as molasses and crashed constantly. My team triaged the worst of it and got it to a semi-usable state before getting approval to build a replacement. It took about 6 months.