Premier League clubs are on course to break the record for transfer spending this summer as they hire and fire managers at an unprecedented rate, underscoring the increasingly cut-throat economics of the world’s richest football league. With 12 days before the transfer window closes, the 20 clubs in English football’s top flight have spent a combined €2.7bn on transfers ahead of the new season, which kicks off this Friday evening. Spending is running ahead of the rate of last year’s record summer transfer window, when Premier League clubs had spent €2.6bn at the equivalent point, according to data from Transfermarkt. The outlay also exceeds the €2.3bn cumulatively spent by all of the clubs in Italy’s Serie A, the German Bundesliga and La Liga in Spain this summer. This summer’s biggest deals include Chelsea’s €138mn purchase of Morgan Rogers from Aston Villa and Manchester City’s €135mn deal to sign fellow England international Elliot Anderson from Nottingham Forest. Chelsea ha...