Who will replace Levein at Tannadice?
Dundee United fans have had it good in recent times with Craig Levein having restored the club's bruised pride and reputation.
Life moves on, though, and with Levein leaving to take the Scotland job, United must now find the man to take the club forward, building on the substantial progress made in his three years at Tannadice.
The job is hugely attractive: no rebuilding work needed, a talented squad of players who have shown themselves capable of matching the best in the country, and a stable club.
So who will United go for? Good man-management skills are likely to feature high on the board's list of requirements.
In the current economic climate United are also unlikely to shell out large amounts of compensation so that narrows the field.
The concept of someone being a number two and not able to step up to the plate of management is a dated one. Opportunities arrive at different stages in life for people and one has just arrived big time for assistant manager Peter Houston.
He knows the club inside out, would be a popular choice with the players, and would allow continuity and stability, something that footballers crave.
In the next three games Houston can make the job his own and there is no reason to suppose that he would not be interested in his first proper crack at management. He has gleaned a huge amount of knowledge in his years with Craig Levein, and would be able to tap into the new Scotland boss for advice.
Other candidates like Michael O'Neill and John McGlynn also tick plenty of boxes.
O'Neill has done great work at Shamrock Rovers since joining them from Brechin City. While he may lack top-flight managerial experience, he is an articulate communicator, a very good coach and, as a qualified financial advisor, understands football finances, a hugely important aspect of management.
Being a former United player will do him no harm either.
McGlynn has done sterling work at Raith Rovers on a limited budget and did a good job in his time at Hearts as caretaker. He has gone about his work at Stark's Park in an understated fashion but has attracted plenty of admirers.
There are plenty of experienced bosses out there looking for work; John Robertson and Jimmy Calderwood to name but two.
The United board have already been inundated with agents throwing names into the mix and more will follow in the coming weeks.
They are in no desperate rush to make their choice, given the fine fettle that Craig Levein has left the team in, but sooner rather than later they will have to choose.
One thing's for sure. In Scottish terms the job is a very desirable one. The postie down Tannadice way is sure to be busy in the weeks ahead.