We're noticing Matt Duffy's struggles only because it's the beginning of the season.
Matt Duffy was the runner up for the 2015 Rookie of the Year award. There were 30 writers, and the majority of them thought that Duffy was the second-best rookie in the National League. It was an uncontroversial vote.
What you might not remember: Duffy was pretty bad over his last 13 games. He hit .236/.263/.382 in 57 plate appearances, with just two walks and 11 strikeouts. The writers added him to their ROY ballots anyway. You did not worry all winter if Duffy's slump was going to carry over into the next season, and that's if you realized he slumped in his last 13 games, which you didn't.