Is Falcao's Man United time at an end?

It was the Preston fans who chanted "what a waste of money" at
Radamel Falcao on Tuesday night.
But you could not really blame Manchester United manager Louis
van Gaal if he thought the same after the expensive striker's latest
ineffective display.
Time is running out for the £6m loan signing from Monaco, who
has until the end of the season to persuade Van Gaal to fork out
£43.5m to make his deal a permanent one.
Right now, the chances of that happening look minimal, at best.
Far from justifying his £265,000-a-week wages, Falcao has scored
just four goals in 18 games for United, and has completed 90
minutes a mere four times in five and a half months at Old
Trafford.
Preston 1-3 United
Are United better off without him? They were against League One
side North End, who led until Van Gaal hauled off the Colombian
after an hour and saw his reshaped team fight back to win 3-1 and
reach the FA Cup quarter-finals.
And with only 13 Premier League games and the rest of United's
FA Cup campaign left of the season, maybe the real question now
is how many more chances will Falcao get?