I was rather frustrated with our club's group rides this past season. There was only one ride per week, so if that day didn't work for you you didn't ride with the group. There were sometimes additional group rides, but they were announced via word of mouth, or at the regular group ride, or at best a post on our website late the night before (which I often saw the next morning, right after the ride left). It seemed like the road ride coordinator just wasn't into it.

So, from my not so good experience, I would suggest that you make sure your rides are publicized in a variety of ways and always give notice of a change or addition. And if possible, have more than one club ride a week so people with busy schedules are not always missing out.

I also echo the other comments about varying the route when you can and having different, clearly defined, groups. Some days you want to ride hard and some days you want a casual friendly ride. It would be great to have a group that you can fit into no matter how you're feeling that day.

Good luck with your new role!