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The Greek philosopher Heraclitus famously noted that the only constant in life is change. He could have been speaking about the Texas Department of Transportation, particularly under the leadership of outgoing executive director Amadeo Saenz. Saenz, who will retire at the end of August, has been at the helm of the good ship TxDOT as it navigated some of the worst rocks and shoals in its 90-year history, but his dedication and perseverance have taken TxDOT over the horizon and into a new era. I spoke with Mr. Saenz recently for a retrospective on his 34 years at TxDOT.