A recent cabinet reshuffle by the Tsai administration likely indicates hopes by the Tsai administration to improve its public image in the lead-up to 2018 local elections. In particular, where changes in cabinet officials have occurred in areas in which the Tsai administration had previously seen criticisms...
With Lin Chuan's resignation as premier and his replacement by William Lai, as well as an impending cabinet shuffle, changes would be afoot in the Tsai administration. As has been pointed out, very likely the Tsai administration has its eye on midterm approval ratings with its reshuffle, but the switch is probably also aimed at turning over a new leaf in the public eye...