▁did ▁not ▁follow ▁the ▁round - ro bin ▁format ▁of ▁its ▁prede cess or , ▁instead ▁util ising ▁a ▁rot ating ▁pool ▁structure ▁followed ▁by ▁a ▁knock out ▁bra cket . ▁The ▁rot ating ▁pool ▁format , ▁known ▁as ▁the ▁' N aft el ▁S lide ', ▁would ▁seed ▁a ▁Pod ▁ 1 ▁team ▁into ▁each ▁of ▁four ▁po ols ▁with ▁two ▁un se eded ▁oppon ents . ▁After ▁an ▁initial ▁round - ro bin , ▁the ▁top ▁team ▁in ▁each ▁pool ▁' sl id ' ▁into ▁the ▁pool ▁to ▁the ▁left , ▁and ▁the ▁bottom ▁team ▁similarly ▁moved ▁to ▁the ▁right . ▁▁ ▁Development ▁Cup ▁ 2 0 1 8 ▁featured ▁th ir teen ▁teams , ▁most ▁of ▁whom ▁having ▁attended ▁their ▁respective ▁regional ▁tournament ▁but ▁not ▁having ▁qualified ▁for ▁the ▁British ▁Qu idd itch ▁Cup . ▁Three ▁teams ▁were ▁' mer cen ary ' ▁squad s ▁formed ▁from ▁the ▁mer ger ▁of ▁two ▁existing ▁clubs ▁who ▁had ▁been ▁unable ▁to ▁field ▁a ▁full ▁ro ster ▁alone . ▁The ▁teams ▁were ▁grouped ▁as ▁follows . ▁ ▁The ▁first ▁round ▁of ▁game play ▁proceeded ▁as ▁follows : ▁ ▁The ▁teams ▁at ▁the ▁top ▁of ▁each ▁pool ; ▁Glasgow , ▁London , ▁Bath ▁and ▁Derby , ▁all ▁as - y et ▁und efe ated , ▁moved ▁one ▁place ▁to ▁the ▁left , ▁whilst ▁the ▁bottom ▁teams ▁( including ▁the ▁bottom ▁two ▁teams ▁from ▁Pool ▁D ) ▁moved ▁one ▁place ▁to ▁the ▁right . ▁The ▁new ▁po ols ▁thus ▁constructed ▁were ; ▁ ▁This ▁led