For mid-sized orchestras, finding and holding onto quality executives can be a difficult task. If an executive succeeds in creating a sustainable orchestra model at a top regional orchestra, s/he will likely be snapped up in short order by a more high-profile ensemble. Such was the case in Portland this past year, where Oregon Symphony president Tony Woodcock was snatched away by the Minnesota Orchestra, leaving Oregon scrambling to find a replacement who could match Woodcock’s skills. Today, the symphony will announce William A. Ryberg, a tenor-turned-banker who has lately been running a small orchestra in Michigan, as its new president, and all involved will cross their fingers in the hope that they’ve found another quality administrator, and that this one might stay.