Comment by CamouflagedKiwi

I've also known some that prefer a Linux network. However one thing that is pretty objective: it will be harder managing a network with both kinds of machines than either one individually, which will inevitably happen for some period during the changeover. Also it's clearly hard to change from one to another when you have a team who only needed skills in one previously - that is one of the things that seems likely to sink an effort like this.