This is a bit stale, but from the 7/2/2009 Morningstar "Stock Analyst Notes:"
[Cumulus CFO Marty] Gausvik's nine-year run as CFO came to an unexpected end with the after-hours release issued Wednesday. The company disclosed that Gausvik resigned "to pursue other opportunities." We think the vague wording and sudden nature of the departure raises a number of questions about the operational environment at the firm.
Corbett also writes that Morningstar is "maintaining [its] fair value estimate" of Cumulus stock, which suggests that Morningstar analysts weren't overly concerned about those "questions." Although perhaps they should have been.