TD Magazine Article WHATS WRONG WITH THE STYLE THEORIES WR By William J. Reddin 0 Comments Bookmark Main Site Sign in Page Don't have an ATD account? Don't have an ATD account? Forgot your Password? Already an ATD customer without a web account? Institutional subscriber? Click here to sign in. Share Member-Only Content Discusses approaches to be avoided by in any behavioral theory of managerial effectiveness. 'Either-or' approach to management styles; Types approach; Psychological approach; Ideal style approach. You've reached ATD member-only content. Sign in below or join ATD to continue. Sign In