Striker Missing Chances And Not Scoring Enough Goals

[Tactician]

Your expectations are high to be honest. There is no golden rule to get a striker that will Always score. A level 31 striker will outplay most defenders at your level. But there are a lot of variables to take into consideration.
1) What teams are you facing? Stronger then you or all weak teams? If the teams are stronger then your striker will score less. If he is only facing weak teams then his scoring is low.
2) What kind of tactic are you playing? Is he a lone striker or does he get supported by wingers and attacking mid fields?
3) How is the rest of team playing? If other players are scoring like mad then your striker could be one of the reasons. In normal football a good striker is not only a player who makes decisive goals but also a player that can distract 1-3 defenders. That way he opens up opportunities for other players.
4) Is there a second striker next to him? How does he play? Is this player playing on the left because of his left footing? If not try to switch him out.

As you can see, a lot of variables. If you compare him to my best strikers. First strike has one on one SA. He has 25 matches, 25 goals and 5 assists. Average score of 7,8. Second striker has 12 goals and 12 assists. Average score of 7,5. I am satisfied with both. My mid field is also scoring like crazy. Number 1 in the league.

1. Weaker teams.
2. Depends on the formations used, but always supported (wingers or AMC or another ST).
3. Much lower value and slow training striker (from last season) scoring more goals than him; also, he seems to have more presence on the pitch.
4. Supported by another ST or not, he does not seem to perform well in terms of scoring goals from open play, especially in important matches.

What is even more annoying is the missed chances, especially in important matches. This is one of the main reasons why I'm considering to sell him.

The only reasons why I have kept him is because of his fast training ability and his attributes profile. But, I'm again considering selling him at the end of the season as performance on the pitch is what matters most. I have to ask others (as a precaution) as they may have come across such a player before where the player is like this the first season and changes after a season, where he turns out to be one of the best players.