You'll want additional ventilation for warmer weather, that can (should!) be lower down where the chickens can catch some breeze. Windows work; giant removable wall panels work; that sort of thing.
Do the coop 'people door' and pophole count? Sort of. I mean, yes, they do provide ventilation when they are open, but remember that they will not always be open and you need to be able to provide sufficient airflow even when they aren't. I would not suggest counting on them towards your basic ventilation needs.
Manage your ventilation intelligently -- you will want to change the amount that's open according to the weather, although as mentioned you don't want to shut it all down except in very rare instances. Sometimes you'll want to close upwind vents if it's getting too windy in the coop on a windy day.
In a really windy site, you may want to build some sort of baffle or hood for some of the usually-upwind vents (the high year-round ones) to blunt the force of the wind.