to be fair he has a point even if worded it badly. He hasnt been great in any position he has played but he has just shown small glimpses. Theres a reason people call him 'bambi on ice'. He will be good but there's gonna be loads of frustrations along the way. Right now though, Hernandez should be above him.
I'm not entirely convinced, though. Welbeck is only ahead of Hernández in the "pecking order" as a striker. The Manchester City game is the only game where Welbeck has played as a centre-forward this season. I would have done the same because he contributes to our overall play much more. And I've said it since I was a newbie, but football changes quickly. I used the Mandzukic example. Look at Benzema. Look at Aston Villa with Benteke and so on.
Welbeck's versatility is what allows him to play as a LW, RW, second striker, and a centre-forward Then this notion of him not playing well in any of these positions is - quite frankly - absurd. Against Real Madrid (first leg), he played as a LW and second striker - he was that good. In the return leg, he stopped Real Madrid's primary supplier, Alonso, from distributing the ball to Ronaldo. This isn't a post to defend Welbeck, but it's to defend his position in the team. Sure, he still needs to improve on his goal scoring record, but fans trying to comprehend why Hernández isn't starting by aiming shots at Welbeck is not the right way to go about it.
I've not seen anyone mention what Hernández has done this season. As little as he's played, he deserves criticism, as does every other player. Against Crystal Palace, he missed a great chance, after Rooney set him up. Against West Brom, his movement was off - he should have scored at least one, plus he failed to lay off Rooney at the beginning of the second half. His best performance was against Liverpool, but it's very hard for him to maintain such a performance. He deserves more chances, quite clearly, but he's on his way out, unless Van Persie picks up a season-ending injury.