If you check out Wikipedia then it shows Fairhurst as being quite prolific at the level above ours between 2011 and 2015. So the question is, how do Boston get the best out of him? At 27 he should be in the peak of his career. Here's also what it says about him:
'Fairhurst is an energetic, creative forward, who is just as effective with either foot and he is a versatile attacker, capable of playing anywhere along the front line, as a striker, supporting forward, or even as a winger. he's even been deployed in a deeper, more creative role, as an attacking midfielder because of his passing ability. Fairhurst is renowned for scoring goals inside the area. Fairhurst has also been praised for his work-rate and stamina'