Michael Carrick was given far too much time to sit on the ball and his patience paid off when he found Javier Hernadez lurking at the near post. Carrick's floating long ball was headed by Chicharito in a high, looping pattern that spun around Petr Cech and into the net to put United ahead 1-0 in the 6th minute.
Cech deserves some criticism for the goal though as he inexplicably tried to charge at Chicharito despite the fact he had a defender already there covering. If Cech had been deeper he likely would have had enough time to react to the header as it wasn't a high speed attempt.
Either way, it's a bad start of Chelsea and another strike against the Interim One as the Blues are in an early hole at Old Trafford.