Reports have emerged claiming that the Bulgarian forward is keen to part ways with the Cottagers in January following a tough start to the campaign.
Despite becoming a fan favourite in his debut season, the 32-year-old's performances during the 2013-14 campaign have been criticised on a number of occasions.
"I don't think that would be a bad thing," Collins told talkSPORT. "I am an admirer of his talent and his skill but he is not a worker. He doesn't press from the front.
"He's been dropping a little too deep for me the last six months and Fulham need all hands on deck. They need a squad of players on the pitch that are going to roll their sleeves up and work their socks off."