By Grey Whitebloom Going into the 2008/09 season, Sir Alex Ferguson wanted to replicate the formidable strength in depth boasted by his 1999 treble winners. “For us to achieve what we want to, we must have four strikers of the quality of Dwight Yorke, Andy Cole, Teddy Sheringham and Ole Gunnar Solskjaer,” the legendary Manchester United manager insisted. Back then, the Scot could call upon any one of Cristiano Ronaldo, Carlos Tevez, Wayne Rooney or Dimitar Berbatov. Erik ten Hag has no such riches. With Anthony Martial sidelined until the middle of April after undergoing groin surgery, Rasmus …