Real Madrid's forwards have failed to fill the gap left by Cristiano Ronaldo, Luka Modric said on Monday.
The Croatian, speaking ahead of Real's Champions League last-16, second-leg clash with Ajax on Tuesday, said his team lacked consistency and goals this season.
Madrid failed to score in two Clasicos against Barcelona last week, being eliminated from the Copa del Rey and falling 12 points behind the Catalan league leaders, leaving retaining the Champions League as their only hope of glory.
Ronaldo, the European champions' all-time top scorer, left in July to join Juventus and Madrid signed young attackers Vinicius Junior and Mariano Diaz but no big-name forward to replace the Portuguese.
Club record signing Bale has 13 goals from 33 appearances in all competitions, while top scorer Benzema has netted 20 from 42.
Madrid hold a 2-1 lead over Ajax from the first leg and coach Santiago Solari hopes the team can be more accurate in front of goal as they bid to seal their progress to the quarter-finals.
"Cristiano is living history at the club and all he's done for the club is shown in the trophy cabinets; we have maximum respect for him," said the coach.
"Those of us who are here are working the best we can, to attack better, to score more goals, to do our job. It's true we've had a lot of chances in recent games, and we have to finish them."
