Chelsea chief Todd Boehly has come to the rescue of West Ham’s ailing window as deals for four big targets are now possible. Last summer West Ham were one of the only clubs to get anything close to Chelsea’s level of transfer outlay. West Ham’s business was of course fuelled by the £105m sale of Chelsea academy reject Declan Rice. This summer, though, has been hit and miss for the Hammers thus far while Chelsea’s relentless pursuit of signings continues. New West Ham head coach Julen Lopetegui and the club’s technical director Tim Steidten want to make eight signings this summer. But so far th…