AFC West

Vahe Gregorian: Not even Patrick Mahomes can overcome the flaws the Chiefs displayed Monday

KANSAS CITY, Mo. — With just over six minutes left in the fourth quarter on Monday at GEHA Field at Arrowhead Stadium, the Chiefs trailed the Las Vegas Raiders 20-7. A predicament, to be sure. But over most of the last five-plus seasons of the Patrick Mahomes Era, faith would have sustained fans who’ve come to expect the routinely sensational. Not anymore, though. Not after the Chiefs had lost three of their previous five because of the same recurring issues. And not after an often-incoherent offensive performance that several times drew boos on a day that ultimately featured the Raiders’ defe…