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Of the players mentioned in this list, Emmanuel Adebayor is the one with the biggest chance of earning a reprieve. Currently, Tottenham have only two experienced strikers, and a strong finish to the season from the Togo international would show the club why they spent £5 million to sign him on a permanent transfer last summer.
The problem is, Adebayor does not look like he is going to show that sort of form anytime soon. He has scored just three times this season. There were extenuating circumstances in the opening months (injury and fitness issues meant he didn't start for a while), but it has been difficult to excuse the struggles since.
There have been fleeting glimpses of his talent (a decent second half showing versus Lyon last week) and examples of the role he can still perform for his team (he got into good goalscoring positions against West Ham). But the baffling failure to back this up with genuine contributions to the team has left his future hanging in the balance.
One of the most significant measures of the difference between Adebayor now and the player that performed so effectively last season on loan is his assists tally. In addition to his 18 goals in 2011-12, he set up a further 12. This year he has not assisted a teammate once.
Admittedly, Tottenham have often lined up differently with several of the 28-year-old's starts having been as a lone striker. Inevitably that means periods of isolation, and a different sort of involvement to what you have with a partner upfront. Yet even with Jermain Defoe alongside him, Adebayor struggled to link up with him or others.
A story by Tom Collomosse in Thursday's edition of the London Evening Standard suggests Villas-Boas is about ready to call time on Adebayor's Tottenham stay. It might be a little too soon to say for sure, but if Adebayor does want to stay in North London he has got to start showing it soon.