Charles Ainger and Tony Juniper (NCE 6 December 2001) appear to be playing in the same band even though they may have different instruments.
Ainger thumps the drum for sustainability measures to guide the planning process, whereas Juniper carries the now familiar and hummable, eco-melody.
Planning regulators are the conductors in this metaphor who interpret the politicians' score. They set the tempo. Too slow and it's a dirge; too fast and it's a cacophony.
Nor do civil engineers commission the works in the first place, being but poorly paid performers. So Juniper, don't be too scathing of the players in the band if the arrangement is not quite to your taste - many would like to 'rock and roll' too.
Peter Leach (M), ESS Consulting, Maes Gwenith, Ffordd y Pentre, Nercwys, Mold CH7 4EL