Don you think it is too early to judge Chelsea's performance from the first game they played for the season, and we all know it was a game played against the strongest team in the premier league. If Chelsea had played their game with any random premier league and they failed to win then we can quickly express the dissapointment.
I don't think it is too early to judge a team like Chelsea after the first game of the season, even though the season just started, we always see the same result, so I wouldn't be surprised if Maresca ended up as Pochettino. Manchester City is the best team in the Premier League, but after Chelsea's 2:4 loss to them in the preseason game, many people thought that Chelsea would perform better in the league. However, based on their performance against Manchester City, the management was only busy signing midfielders rather than top strikers, so their spending money and player deals are meaningless if they fail to get good results in their games.
I doubt Chelsea will perform well against an average team because they don't have a striker and Jackson is just good at offside and wasted scoring opportunities. Wolves will host their next game against Chelsea, both teams lost their first game of the season, so let's see how Chelsea does against an average team, since Manchester City is strong opponent.