You just accused me of not understanding marketing and now you're talking about maximising shirt sales..... Players DO NOT make any significant difference to the number of shirts sold by a team year on year, the name on the back is the only thing that changes by and large, the volume does not. Messi/Ronaldo might drive those sales up by 300-500k in year 1 but that's worth between 10-25m to the club maximum, and thats the 2 biggest stars in history. In year 2 it reverts to type, it's no real money in the football world. The rags are the biggest sellers on the planet and they sell 3.25m per year and earn about 10-18m from that, manufacturers pay sponsorship money to clubs and reap the sales revenue. Shirts sales is a complete myth. Players by and large don't generate ADDITIONAL shirt sales.