... Instant replay during a preseason football game is downright mind-numbing.

Watching an official climb under the hood to agonize over a call that doesn’t matter in a game that doesn’t count is one of the least enlightening experiences the gridiron has to offer.

Nobody ever claimed that watching three hours of football makes you smarter, but after Brad Childress stopped play twice in Houston on Monday night via red flag, I’m convinced that sitting through a five-minute replay boondoggle during an exhibition game can in fact make you a little bit dumber.

Monumentally pointless challenges aside, however, the Vikings’ third preseason tilt (presumably the one that comes closest to the genuine arti...

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