His position is like CEO of the San Franciso Market. Probably oversees +/- 100 branches, plus car sales and leasing operations.

I think Derek Watts is/was a Regional Vice President. This position would be a direct report to Len's.

Although I am not familiar with names, here is the likely food chain for your local operation.

Branch Manager reports to..
Area Rental Manager reports to..
Regional Rental Manager reports to..
Regional Vice President reports to..
Group Vice President / General Manager

Hope this helps..