Is there an adjective or a noun to describe a person willing to argue contradictory things depending on what suits him?
For example:
"Our company should buy X — it's good for the shareholders". Realizing later that it's bad for his career: "Our company should not buy X — we have too much invested in Y".
Best Answer
You could call someone like this expedient (World English Dictionary: "inclined towards methods or means that are advantageous rather than fair or just") or maybe a vacillator, someone who "fluctuate[s] in one's opinions" (WED).