Recent work by our team (Omar Radaideh & Jon Mosar) confirms that there is a significant tectonic control on the evolution of drainage systems, but also revealed a possible evidence for the reactivation of some inherited faults. This work is now published in Tectonophysics : Tectonic controls on fluvial landscapes and drainage development in the westernmost part of Switzerland: Insights from DEM-derived geomorphic indices. It  can be accessed online at https://doi.org/10.1016/j.tecto.2019.228179