I listened to a few of Wigan's games towards the end of the season - partly because I wanted them to lose and partly because I couldn't bare to listen to our game instead.
Bong sounded by FAR their best player going forward. They were fairly solid at the back last season so relegation can't really be blamed on the defenders.
Sounds like a promising signing on paper don't think you can read too much into his relegation with Wigan. He was drafted in at the last minute and there is only so much one man can do, gets the thumbs up from me.