Kenan Memorial Stadium had already started to empty out by halftime, with North Carolina trailing, 35-3, against Clemson and all the preseason hype — of being a top program, of competing for national championships, of everything that could be possible with Bill Belichick as head coach — a distant memory.  The Tar Heels were destroyed by the Tigers, 38-10, on Saturday in the latest low in Year 1 of the Belichick era. Clemson appeared to ease off the gas in the second half with star QB Cade