There are many ways you can do a schedule with 16 schools, some easier than others. The easiest with a 9-game FB schedule would be 3 protected rivals, then you play everyone else once every 2 years. For BB, you would still have the 3 protected rivals, and then play everyone else once = 18 games. And yes, this would mean PODS.
Again, lots of different ways you can schedule, but the numbers don't work out well with many different combinations if you are trying for some semblance of scheduling equality. The other "easiest" way is two 8-team divisions, but that is really just two separate conferences with a "non-con" scheduling agreement. Play the other 7 in your division, then play 2 in the other division. You'd only see those teams every 4 years, only every 8 years at your place. Basketball doesn't really work well with that setup, you would only have 4 games left each year against the other 8 schools.