Slade: 'Oldham Goals Were Avoidable'
The Os took the lead through teenager George Porter. But goals from Shefki Kuqi, Reuben Reid and substitute Matt Smith secured a 3-1 win for the visitors.
Slade said: 'We had a great start to the match and it was superb for George Porter who got a goal on his first start.
'Oldham are a strong physical side and so balls into the box and second balls began, towards the end of the first-half, to become a bit of a problem. But we got through to half-time which was important.
'But in the second period, I have to say that the three goals we've conceded were really disappointing. They were avoidable.
'Our back four are really experienced players but there was a bit of communication problems between a couple of players, they've both gone for the same ball and we have not narrowed off as a unit at the back and to be honest, one or two Oldham players could have scored the first goal.'