Mit heißer Nadel gestrickt — knitted with a hot needle. It is said of a law or a program that was made in a hurry. A newspaper wrote in 2007: Offenbar ist das Programm zum raschen Stellenabbau mit heißer Nadel genäht worden. (Evidently the program for fast job cuts was sewn with a hot needle.)
Hauruckverfahren — the heave-ho method. DWDS defines it as hasty, reckless action. A CDU politician said in 2006: Ein Ding, das für Jahrzehnte gelten soll, muss nicht im Hauruckverfahren entschieden werden. (A thing that is meant to last for decades does not have to be decided by the heave-ho method.)
Blinder Aktionismus — blind actionism. Duden defines Aktionismus as an exaggerated urge to be active, and notes that the word is often critical.
Generalstabsmäßig — like a general staff. Duden defines it as with military care and precision. Duden gives it no critical label. Its example is a bank robbery planned like a general staff operation.
Erst wägen, dann wagen — first weigh, then venture. It is the motto on a cast-iron wall relief of Helmuth von Moltke in uniform, made in Ilsenburg in 1891.
Gut geplant ist halb gewonnen — well planned is half won.