Comment by koolba
I don’t know why people are so hesitant to just fire bad people. It’s pretty obvious when someone starts actually working if they’re going to a net positive. On the order of weeks, not months.
Given how much these orgs pay, both direct to head hunters and indirect in interview time, might as well probationally hire the whoever passes the initial sniff test.
That also lets you evaluate longer term habits like punctuality, irritability, and overall not-being-a-jerkness.
It's really not obvious to calculate the output of any employee even with years of data, way harder for a software engineer or any other job with that many facets. If you've found a proven and reliable way evaluate someone in the first 2 weeks you just solved one of the biggest HR problems ever.