Well, aging coffee isn't really a thing but coffee does in fact age...
Oxidation is something that affects all food and is what makes it start to lose its freshness. With coffee roasting, beans that are roasted ideally need a window of time to de-gas which is why coffee bags have the valve on the side. It allows the gases to come out but keeps air from getting in.
Once you've opened your bag of Openroad Whole Bean Coffee it's best to consume it within about 14 days to get the full spectrum of flavors from our coffee.
For the coffee science buffs out there, here's a great video about degassing and coffee freshness from Chris Baca.