Scales told The Sun: âThe title is Manchester Unitedâs to lose.
"Itâs frustrating, but for Liverpool to be challenging and in this position is great.
âBut the big criticism was not replacing Robbie Keane when they sold him in the January transfer window.
âTheyâre lightweight within their squad â thatâs clear.
"A lot of emphasis has been on Torres and Steven Gerrard being the fulcrum and driving force of the team.
âTorres has been the worldâs greatest striker in the last 18 months but you canât really on him playing and scoring goals week-in, week-out.
âYou have to have depth up front and thatâs where their key weakness is.â