Captain Jean-Luc Picard (Patrick Stewart) surprisingly did not have any issues when Captain Edward Jellico (Ronny Cox) took command of the USS Enterprise-D inStar Trek: The Next Generation. Captain Picard occasionally had to relinquish command of the Enterprise-D to someone else during TNG. Commander William Riker (Jonathan Frakes) often took over for Picard, but sometimes Starfleet sent an officer better qualified to handle a particular situation. This was the case in the TNG season 6 two-parter, “Chain of Command,” when Starfleet sent Captain Edward Jellico to take command of the Federation flagship.