Allen, who was crucial during former manager Brendan Rodgers' reign at Swansea, could leave the Welsh club as rumours persist he will join his former boss at Liverpool for £15 million.
Laudrup believes it is sometimes in a club's best interest to let a player go."If you have a player who thinks he should be elsewhere, then what's the use?" Laudrup said.
The Dane has maintained that Swansea have yet to receive an offer for Allen but has revealed he has already started thinking of a plan B if the 22-year-old leaves the club.
As disclosed earlier on this site last week, Liverpool Manager Brendan Rodgers wanted to get his former player at Swansea by saying to owner Huw Roberts:"Name your price".
That price seems to be upwards of £12 to £15 million for the midfield dynamo.
So lots of Liverpool midfielders at Anfield as we speak: Charlie Adam, Alberto Aquilaini, Joe Cole, Lucas, Jay Spearing and Steven Gerrard, sales will have to be made in that area.
Busy Summer ahead for Rodgers and Liverpool FC.
Pat's Football Blog