Not all defeats are due to bad managers on the one hand managers are limited by the quality of players while they have to compete with the best players in the world
In these conditions sometimes managers are only given a target to stay in the EPL no matter how they do it, the scenario might be different if we talk about a big team with a lot of great players but always lose well that's probably the manager factor that doesn't match the team.
This is true but Newcastle or Wolves do not have the best players in the world and that is why they fight for relegation nearly every season in the Premier League. Wolves do not fight as much as Newcastle to stay in the league but I think Newcastle might have better players especially in attack then Wolves. The way Newcastle are going they are not going to stay in the Premier League this season I cannot remember the last time that they won a game? Wolves I think will finish around mid table and will not need to worry about being relegated. They have looked better this season now that they have their main striker back.