That's Eels dumb defensive structure of always rushing up in defence on the edges. Their edges were getting torn up for like 3 years in the majority of games without him there. I think I can safely say you can't pin it on him considering the other edge players regularly all rushed up and "missed" as in statically or literally and didn't lay a hand on the opposition in quite a lot of their games for an otherwise top 4-5 team.
If he was even half decent he would have been able to secure an NRL spot. But he has always had some very poor players ahead of him before he was called in. Or lost his spot in the pecking order to poor players.
At Eels they preferred guys like Dunster, Penisini and Opacic along with having Niukore move from their preferred position before going to Oldfield.
At Raiders the year before Oldfield started fairly high up the pecking order but was then dropped to a non option at all with the Raiders preferring anything to picking him. From Rapana out of position at centre, Scott who is a known defensive liability and unwanted by the club, guys like Timoko, Harley Smith-Shields and Valemei etc. it just really puts into perspective where the clubs he was at rank him.
Any time I have seen him play he looks a defensive liability to me and offers very little in attack. I mean you have no frills guys like Momirovski who can cement a place in decent teams through being reliable. But then you have guys like Oldfield where the only reason for having them is experience. But that reasoning just prevents other guys from getting more experience for the sake of having someone who is a known dud in the team.
It would be different if he somehow ended up at clubs with stacked backlines. It is possible to find a decent player in bad circumstances. But Oldfield isn't even wanted at minimum wage for his last 2 clubs. They clearly feel they can do better with that spot also. We're better than Eels and Raiders, we have better juniors than those clubs and we can definitely do better without finding a bargain on the market. If there's one to sign our club should be far more desirable than either of those teams having just won a competition and having the NSW State of Origin halves pairing.