If we're on books, I'll always suggest "Up the Organization" by Townsend. It's a classic for a reason.

https://www.amazon.com/Up-Organization-Corporation-Stifling-...

Up the organization https://www.amazon.co.uk/Up-Organization-Corporation-Stiflin...

The complete Yes Minister https://www.amazon.co.uk/Yes-Minister-Prime-Complete-Collect...

The undercover economist and it's follow up https://www.amazon.co.uk/Undercover-Economist-Tim-Harford/dp...

I would struggle to encapsulate it all except "people and organizations can be vicious and complex but we all innately want them to be simple, fair and if we can find someone believable we can turn around any hideous situation"

I'm a big fan of vacation policies that lean this way, and have been working at a shop that has a "no vacation policy, policy" for almost four years. That said, I'd echo what I've heard a number of people [1] say about this strategy... that your new challenge is making sure that people take enough time off and don't feel guilty about it. This is the hidden upside to commoditizing PTO, no one sweats using it. It's sort of perceived as a liquidized resource. In an environment without any rules or even vocabulary around time off, it can be a little bit discomforting to take a two week trip or go through with long-weekend plans in a crunch time, etc.

That said, I vastly prefer it to the alternative.. Just want to encourage teams that go down this road to not use these vacation policies as an accidental excuse not to pay attention to and discuss time off and whether it's working out for everyone as well as you'd hope or expect!

[1] My first exposure to this sentiment: http://www.amazon.com/Up-Organization-Corporation-Stifling-S...

[Edit - Just feel the need to plug harder - Seriously, go read Townsend's book. Published in 1970 and it (unfortunately) still reads incredibly forward thinking. It's basically Rework , written 35 years ago (with only respect to JF and DHH, I really enjoyed Rework as well).]

Up the Organization - http://www.amazon.com/Up-Organization-Corporation-Stifling-S...

And outstanding book about running a business.