Scales told The Sun: â€śThe title is Manchester Unitedâ€™s to lose.
"Itâ€™s frustrating, but for Liverpool to be challenging and in this position is great.
â€śBut the big criticism was not replacing Robbie Keane when they sold him in the January transfer window.
â€śTheyâ€™re lightweight within their squad â€“ thatâ€™s clear.
"A lot of emphasis has been on Torres and Steven Gerrard being the fulcrum and driving force of the team.
â€śTorres has been the worldâ€™s greatest striker in the last 18 months but you canâ€™t really on him playing and scoring goals week-in, week-out.
â€śYou have to have depth up front and thatâ€™s where their key weakness is.â€ť