Hi Jeff - Glad to see you here!
There are a number of ways to look at this... Consider questions such as "Are we completing our Rocks and hitting our Scorecard numbers?", "Are we pushing ourselves hard enough?", "Am I giving my team the time and attention I should for them to be successful and develop?", "Am I able to perform all the Roles in my 3 seats to the appropriate level in a reasonable amount of time each week?", "Am I spending as much time as I should on things I enjoy most and that are bringing the most value to the company?". If the answers to any of these are 'no', it would probably be worth your while to explore options.
You might also want to take the V/I Rocket Fuel assessment, if you haven't already. If you score high on the V and low on the I, the sooner you get an Integrator, the better! :)
Fractional might be a good place to start. Also consider if there is someone inside your organization who GWCs the seat.
I hope this helps!