Shigeo Shingo, one of the co-creators of the Toyota Production System, is a must-read authority on time orientation, but also on "just good management". His write is clear, his message is highly contemporary. Among his several great books, this might be the best.
Wikipedia entry on Shigeo Shingo
An overview over Shingo’s books in English
Read the article From Toyota to TOSD: For high performance, make time the boss