Paul Dickov enjoyed a winning start in management as a brace from midfielder Dale Stephens secured Oldham a 2-1 victory at Tranmere in npower League One.
Stephens wrong-footed Rovers keeper Gunnar Nielson with a free-kick in the first half and doubled their lead after the break from 20 yards. Ian Thomas-Moore headed a consolation for Tranmere.
Richard Logan's late strike secured a point for Exeter after three goals in the first 11 minutes lit up a 2-2 draw with Colchester.
Daniel Nardiello won a penalty for Exeter which Ryan Harley tucked away, but Anthony Wordsworth levelled with a header and then smacked home a stunning free-kick. However, sub Logan's instinctive finish ensured honours ended even.
Rochdale had to settle for a point on their long-awaited return to the third tier after being held to a goalless draw by Hartlepool.
Matt Sparrow scored twice on his debut to make it a happy return to Swindon for Brighton manager Gus Poyet, who oversaw a 2-1 win against the club where he was assistant manager four years ago. Sparrow struck from 20 yards in the 18th minute and rounded goalkeeper Phil Smith in the 74th minute before Swindon hit back through Charlie Austin.
Rookie MK Dons boss Karl Robinson saw his managerial career get off to a flyer as goals from Sam Baldock and Danny Woodards sunk poor Walsall.
Luke Chadwick squared for Baldock to flick home before Manny Smith headed Walsall level, but the Dons claimed the points on the hour courtesy of Woodards' stooping header.
Russell Slade endured a rotten return to Yeovil as Leyton Orient crashed to a 2-1 defeat.
The former Glovers boss saw his side battle back from Dean Bowditch's early strike to level through new signing Alex Revell, but Town secured the points when Orient keeper Jamie Jones fumbled and Luke Freeman scrambled a winner.
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