Yorkshire bowler Steve Patterson has been appointed as captain on a full-time basis across all three formats.
Yorkshire appoint former all-rounder Paul Grayson as their specialist batting coach.
England wicketkeeper-batsman Jonny Bairstow signs a new three-year deal with Yorkshire.
Yorkshire all-rounder Matthew Waite signs a new one-year contract extension to keep him at the club until the end of 2020.
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