Form: 
Some people would argue around this magical word. Someday/months etc. the ball just doesn’t come out the way you want it to be, there is an issue with your foot landing, wind, slope, surface etc. This, I believe is inevitable for any cricketer. But how you bounce back, after a lean patch is important. You can either become Irfan Pathan and lose your way or come back and demolish the opposition like Mitchel Johnson. Even James Anderson had to deal with this around 7-8 years back when his pace started to drop and swing seemed to disappear, but he came back strong.