It’s mid-April, a month after the initial wave of free agency in the NFL, and the Chiefs could still use another wide receiver. And a cornerback. And an edge rusher. Or maybe two. The roster has more needs than at any point in the Patrick Mahomes era, which, by the way, is not a coincidence. We’ll get to that. There is, however, one key opportunity through which the Chiefs can still address all their needs, even this late in the offseason. The NFL Draft. Sure, it’s not quite as comfortable to enter the draft hoping to fill needs rather than stacking luxuries, but Mahomes’ salary does not fit a…