Taarabt scored both goals in what was then the first win of the season at home to the Whites in December.
Redknapp said: "Of course, I'm not going to reveal my hand this early, but Adel looked sharp when I brought him on and he's still in the frame. He's very much in my mind.
"But playing like he does, he's never going to be consistent. There's always going to be ups and downs. But he can be a match-winner.
"The only one who can do play like he does all the time is Lionel Messi, but he also works hard, never misses a game, gets kicked and then gets up, and with no disrespect to Adel - he's not Messi."