A successful time as manager concluded at the end of season 2013-14 withethe former club captain in need of a fresh challenge.
Rasmussen, Juncker and Ahern are all centre-right leaders who have had long stints in power and appear in need of a new challenge.
Finally, in Pennsylvania, Republicans were in need of a strong candidate to seriously challenge the Democratic incumbent, Bob Casey, who is fairly popular.
I had expected a period of abstinence, but ended the most rigorous physical challenge of my life in need of a detox.
Dr Peter Carter, general secretary of the Royal College of Nursing said: "Dealing with rising numbers of older people in need of care is a challenge across the NHS, and the infrastructure of the service must reflect that need.
Shutting down Washington DC is also often defended by stressing a Republican Party preference for state spending - opposition to federal spending reframed, that as, as a states' rights issue that is also in need of challenge.
Once there was a single religion in this country, but now there is a multitude, some of them venerable, some of them very recent - all of them in need of rigorous examination and challenge in a fair school system.
Yemen's health system, already fragile before fighting escalated in March, has been further distressed by conflict, and gaining access to people in need of assistance is a serious challenge.
As a gay man, Mr. Fortuyn was very much in need of tolerance, and his challenge to Muslim immigrants was this: I want to be tolerant, but do you?
