The phrase "total incompetence" means that someone is completely incapable or lacks the skills and abilities needed to perform a task or job effectively. Full definition
The complete and total incompetence of Carnival - owned Costa Cruises in 2012 would be high comedy at its finest — if it hadn't resulted in the deaths of nearly three dozen passengers. (canadianbusiness.com)
But if he does walk out, Wright, Arsenal's second - highest goalscorer of all time, says it has been total incompetence from the club's hierarchy to have allowed this situation to have arisen. (newindianexpress.com)
The Dems were stupid, picked the wrong people to lead them, and demonstrated total incompetence. (nystateofpolitics.com)