## Attack breakdowns: League 1, 2016/17

Continuing the immediate splurge of post-season review graphics for League 1, here are each club’s final attack breakdowns. These are explained in detail here, but in summary they are simple scatter graphics that work as follows:

##### Explanation

Each graphic shows a club’s main attacking players: those who have:

1. Featured for at least a third of their total pitch minutes in the league this season, and
2. Taken an average of at least one shot per game.

The size of each player’s bubble is proportional to the percentage of possible minutes that they’ve played.

Each player’s bubble is plotted on a chart with the two axes working like this:

• On the horizontal axis we have their goal threat, based on the “expected goals” value of shots taken per 90 minutes. This is effectively a measure of the combined quality of their goalscoring chances.
• On the vertical axis we have their scoring rate, using a less abstract measure of actual number of goals scored per 90 minutes.

Both axes exclude penalties, as those can massively skew a player’s contribution away from the threat they pose from open play.

There’s a shaded “stripe” which indicates the long-term shot conversion rate of all finishers except the top and bottom 10%, so we can identify those whose performance may be unsustainable (i.e. unlikely to be repeated next season). If a player is above the stripe, they’re converting chances at a rate consistent with someone in the top 10% of finishers, and likewise a player below the line is in the worst 10%. Based on what we know about the specific player, we can therefore take a view on whether we expect their scoring rate to continue.

##### Club-by-club graphics

Sheffield United‘s Billy Sharp leads the way on the horizontal axis: nobody has been on the end of better chances per 90 minutes than him. However his scoring rate is actually slightly lower than Bury‘s James Vaughan, although the latter may struggle to repeat the same level of overachievement next season.

Along with Vaughan, notable overachievers were Ricky Holmes of Charlton, Aiden O’Brien of Millwall and Port Vale‘s Alex Jones, who all scored at a much higher rate than their shots would suggest.

It was a season to forget for MK Dons‘ Nicky Maynard and Peterborough‘s Paul Taylor who, despite getting on the end of better chances than any of their team-mates on average, found goals hard to come by.

Four teams spread their chances across their squad more than the rest: Bradford, Coventry, MK Dons and Rochdale all saw seven or more players make the cut for these graphics.