He added, "If the Executive is not mindful about finding Scottish-based solution to a national issue, we should not be too proud to seek solutions elsewhere."
The merger with Opera North would be a "worst-case scenario," he said.
Asked by PlaybillArts for comment on the possibility of a merger, a spokesperson for Scottish Opera said in a statement, "Scottish Opera has made excellent progress over the last few months. The current chairman, William Taylor QC, has a positive and productive relationship with culture minister Patricia Ferguson and with colleagues at the Scottish Executive and Scottish Arts Council. We continue to work with them to maintain a positive future for Scottish Opera in Scotland."
McGhie was chair of the company from 1999 to 2004, when he stepped down in the midst of a financial meltdown. The same year, the company agreed to lay off its chorus and shut down its main-stage productions for the 2005-06 season as part of a bailout agreement with the Executive.