take one's eye off the ball

idiomatic

(idiomatic) To lose one's concentration on what is most important.

Japanese Meaning

最も重要な事柄から意識がそれる。 / 本来の焦点を失って注意が散漫になる。 / 肝心な点に集中しなくなる。

A manager must never take one's eye off the ball when deadlines are tight.

締め切りが厳しいとき、マネージャーは重要なことから目を離してはいけない。

Sense（1）

(idiomatic) To lose one's concentration on what is most important.

One of the keys to success in business is never to take your eye off the ball.

takes one's eye off the ball

（ present singular third-person ）

taking one's eye off the ball

（ participle present ）

took one's eye off the ball

（ past ）

taken one's eye off the ball

（ participle past ）