"keen deadlines" is correct and usable in written English.
You can use it to describe a situation in which deadlines are tight or pressing. For example, "The team was under a lot of pressure due to the keen deadlines of the project."
The Blackhawks appear keen on bucking their deadline fortunes from last season when they snagged one of the most highly touted available players in the days leading up to the deadline, Antoine Vermette from the Arizona Coyotes.
They were so keen to meet one deadline that many people in the company worked for seven days without leaving the office.
With Lee eligible for free agency after the season, the Mariners were keen on dealing him before the deadline.
With the Friday transfer deadline approaching, Houston is keen to retain his striker.
County loaned Steven Craig to Partick Thistle before Friday's transfer deadline and Adams is keen to attract new players to Dingwall.
Deadline day arrival Danny Welbeck will be keen to open his scoring account while the injury-ravaged Arsenal defence will be in search of their first Premier League clean sheet of the season.
Striker Roque Santa Cruz, 31, could also leave before Friday's transfer deadline, with Malaga and Real Betis keen on a loan deal.
The club does not want to place a deadline on the search but are keen to make an appointment sooner rather than later.
She said the United States would happily consider cuts in the number of nonstrategic, or tactical, nuclear weapons after the December deadline, saying Russia "has not been too keen to engage in those negotiations".
What if the real reason these entrepreneurs have achieved so much is precisely because – more so than other mortals – they were born with a keen understanding they are working to a fixed (if unknown) deadline?
However, RBS will need to ask the EU to extend the November 2013 sale deadline – in a setback for the government, which is keen to inject new competition into high street banking.
