You can pretty much always write in a left tackle for the Kansas City Chiefs on your NFL mock drafts. That would have been the wrong prediction this year but it could be the right one next year as SB Nation's 2016 NFL mock draft has the Kansas City Chiefs selecting Ohio State OT Taylor Decker.
This pick actually does make sense. If you thought receiver was the most obvious need for the Chiefs this year, just wait until OTs Jeff Allen and Donald Stephenson are free agents next year and offensive tackle becomes the most obvious pick of all time.