MARK Minervini wasn’t at his home track yesterday – but it was the easiest of watches. The Newcastle trainer was a TV onlooker at Royal Randwick as his Broadmeadow 900m specialist trounced his rivals in a Provincial Benchmark 68 Handicap, justifying the heavy backing for him. Ridden by Coffs Harbour apprentice Grady Spokes (whose jockey father Ray spent part of his apprenticeship with the late trainer Alan Scorse at Newcastle), Shall Be ($2.10 favorite) outsped his rivals and