Managed by McLean since 1971, the club had enjoyed a decade and a half of success, consisting of two League Cup wins, a first Premier League title in 1982-83 and five further Cup final defeats, confirming their progression from the smaller club in Dundee to their part in the "New Firm" in Scotland.
So you have to make sure your staff feel valued and help them with their progression.
But that song had the advantage of a substantially more homogeneous pop landscape, filled with vanilla tunes like Jason Mraz's I'm Yours and Miley Cyrus's The Climb, and it used the popular chord progression of the Black Eyed Peas' I Gotta Feeling as a foundation throughout.
Assuming vampires only feed once a month ("a highly conservative assumption given any Hollywood vampire film"), and that each time a vampire feasts upon a human their respective populations increase/decrease by 1, a simple geometric progression suggests that vampires would wipe out humans in approximately 2.5 years (assuming arbitrarily that the first vampire appeared in the year 1400).
At one point, the overhaul threatened to tear apart the coalition and ministers had to take the unprecedented step of halting the progression of legislation through parliament after criticism from MPs and health unions.
He must have felt we were thinking about the privileged upbringing, the pushy father, the Millfield School education, the seamless progression through representative-age group cricket, the Chosen One status with Chris Adams, the voice and the looks of one of The Entitled, just a few days after this lot had assumed political power.
"My work after the Falcons has been a progression more than a response," she told us.
The progression of medical professionals into leadership roles can also be eased by building relationships between doctors, nurses and managers.
There have been reports of misdiagnosis, low motivation due to a narrow career progression, or of referral bottlenecks where clinical officers, unable to diagnose adequately, simply represent an additional level of referral.
"Olaparib slows the progression of the disease for patients with some forms of ovarian cancer but the evidence that it can extend life is uncertain," said Sir Andrew Dillon, the chief executive.
Other scientists questioned whether it was possible to model the progression of a fast-moving epidemic in the way the Yale authors have and Neil Ferguson, professor of mathematical biology at Imperial College London, said the number of new cases had already plateaued in the area.
