Jack of all trades, master of none in Telecom

Hello Experts,

Jack of all trades, in telecom. Is it good or bad? For example to consider yourself as one? For example to say so in interview…

Is it better to have someone on the team who is good at lot of things or excellent at few?

Jack of all trades, master of none is a figure of speech used in reference to a person who has dabbled in many skills, rather than gaining expertise by focusing on one.

The shortened version “a jack of all trades” is often a compliment for a person who is good at fixing and has a very good broad knowledge.

The complete sentence is “Jack of all trades, master of none is often times better than a master of one”.
Goal is to incentivate people to branch out, like learning Optimization but also Core, and also Data Science (programming), etc…
In Telecom we can say the E2E professional. That’s why i think it’s GOOD.