Had similar thoughts myself, I presume his agent will have other irons in the fire but the closer it gets to the end of the window, the more difficult it gets for him - I suspect some clubs, who might otherwise be interested, might be concerned about getting burnt on the fee.
Sunderland trial has been extended and Poyet indicating he'll make a decision after tonight's friendly against Hartlepool - stated he could n't make a decision on the basis of 2 weeks of running and 45 mins v Carlisle - personally don't see how 90 mins v Hartlepool improves the assessment process that much but this is football where logic flies out of the window sometimes.