I don't agree with all of that I'm afraid. The negativity towards Eccles, Allen, and Palmer is causing Sheaf to get exaggerated. He can't go forward. The last two games he's wasted some of our best chances and when he's not in a high attacking midfield position he frequently loses possession by playing long balls that don't reach their target. Somehow a lot of his greatest fans appear to have gone to buy hotdogs every time this happens.
He's strong in the DM position generally, and does make some great challenges at times, but even there he switches off and has been partially to blame for a few goals this season. People were quick to blame Thomas for their second today, but Sheaf absolutely flapped putting any kind of challenge in too.
People don't want to hear it, but in general we need an upgrade across the whole midfield. To answer the OP, yes we do have a problem. None of them are an exception. Before today Eccles was our best midfielder this season, and whilst I like him, we need someone more in the Hamer mould if we are going to reach the next level. The rest of the pitch I feel will grow into it, but in the middle I think we are crying out for more quality.