In the big picture, the Orange Line, the Silver Line, the Expo Line, the Eastside and Foothill Gold Lines have and appear to be moving along nicely. Same with the Crenshaw Line and the Downtown Connector and the Wilshire Subway.
Do I take issue with Metro on key points at times? Of course, but overall I think that David Mieger and Renee Berlin and Jody Litvak and Roderick Diaz and Alan Patashnick and the bunch are doing a great job. I think that the Foothill Gold and Expo Authorities are carrying their own from their end of things, and I think we've replaced one great CEO with another great CEO.
A much greater and real threat is state underfunding of transit operations...but at this time the folks at Metro are doing a pretty good job with the tools they've been given. While I don't believe they can be all finished in ten years, I do think that the planning and consensus will be well-completed and construction more limited by the availability of workers and raw materials than any limitations associated with Metro itself.