手綱を取る
手綱を引き締める
手綱を緩めない
手綱捌(さば)き
one's handling of [how one handles] the reins
〈比喩的〉 one's handling 《of a problem》; how one handles [manages, controls] 《something, somebody》
handle [control, manage] 《something, somebody》 well [skillfully]
one's handling [management] 《of something, of somebody》 is good [skillful]
handle [manage, control] 《something, somebody》 badly [unskillfully]
one's handling 《of something, of somebody》 is poor [bad, unskillful, 【形式ばった表現】 inept]