A respected source has shared some seriously exciting news about West Ham signing a quartet of stars soon. West Ham have a reputation of leaving their transfer business late down the years. That was even the case last summer when Edson Alvarez became West Ham’s first signing just days before the new season started. The Hammers did have something of an excuse, though. Technical director Tim Steidten had only just arrived having left Bayer Leverkusen a few months prior in search of a fresh challenge. And David Moyes had the power of veto stipulated in his contract, meaning West Ham’s window took…