The 2015 summer transfer window marked a momentous moment in Premier League history as the traditional big clubs (Chelsea, Manchester United and Tottenham in particular) were all embarrassed in attempts to sign transfer targets from fellow Premier League clubs.
Seeing the Toffees, the Saints and the Baggies being so resolute in the face of mega finances was a sight to behold and a far cry from when Charlton Athletic and Fulham had Champions League charges halted by Chelsea and Man United when they signed Scott Parker and Louis Saha in the 2003/04 season as they chased down league leaders Arsenal.
However, amid the new TV deal set in place for the 2016/17 season, current Premier League teams know it is better to receive a £5 billion windfall than it is to accept a £30 million bid for John Stones, a £20 million bid for Victor Wanyama or an insulting £22 million bid with only £5 million paid up front for Saido Berahino.
As the league gets richer, it will become much harder to sign players plying their trade in England due to inflated prices. A team selling their star player for anything less than an extortionate price will barely make a profit simply because that same extortionate fee will be put back into signing other 'Premier League proven' talent(s).
Messrs Roberto Martinez, Koeman and Tony Pulis deserve a massive congratulations for not being tempted to sell their best players. With Stones putting in a transfer request, Wanyama reportedly turning down a new contract offer and Berahino threatening not to play again, their decisions may not seem wise now, but they have at least tried to secure the long term future of their clubs, instead of playing Russian roulette in an increasingly volatile market, and that deserves all the credit in the world.