Is it fine to make myself visible in the company when, in fact, I have more experience and know-how than my new senior colleague?
The reason I do this is that he was "appointed from above" and is trying to get all credit for what I do as well as the team I manage. He is with us since just a few months and has been asked to help reorganize us, but when technical questions are asked, people go to him and he sometimes even lies to them, or tells something vague and random, and then commands me to explain more details.
Wouldn't it be better (for both, actually) if I just try and gain more visibility as the "go-to" person in my function?
Maybe my mistake in the first place was to stay in the shadows, and now it's time to come out..?
A FEW CLARIFICATIONS: Let me clarify that he was not officially made the go-to person of my team. Also, officially, I am the manager of my team and my boss has told me in all reviews and 1-1s that I am doing a great job and should keep doing what I am doing. What drives me so much to counter this person is that he is literally giving false information about our team and the technical processes. He literally doesn't know what we are doing and I find it hard to understand why he is even here. When he started I helped him a lot, but suddenly he started becoming bossy and take on a more superior attitude though nothing is official yet.
I simply believe that a battle has started where he is trying to prove that he can outsmart me in making our team work better - but he is doing so by using all my suggestions and all I have managed. AND then he gives wrong information about us. I believe that if I don't address this fast, it WILL put me into the backstage sooner or later, and I already start noticing the symptoms