...in my book

轉 vs. 專  見異思遷  seems negative-- be inconstant,  Rolling stone. but it may share with 見機行事 use one's discretion 見風轉舵 to act pragmatically

更加清楚英漢聯，不由教授不汗顏
本來糊塗教書匠，是非曲直失誤判  new finding