# Guenther Steiner: Mark Webber too involved in Oscar Piastri's career

> Former Haas F1 boss Guenther Steiner says Mark Webber overstepped in Oscar Piastri's career.
- Title: Guenther Steiner: Mark Webber too involved in Oscar Piastri's…
- Summary: Former Haas F1 boss Guenther Steiner says Mark Webber overstepped in Oscar Piastri's career.
- Keywords: oscar piastris, mark webber, guenther steiner, formula one, sao paulo gp, 2025, drivers championship, Motorsport
- Source: Motorsport — https://motorsport.com/f1/news/guenther-steiner-suggests-mark-webber-became-too-involved-in-oscar-piastris-career/10874383
- Author: Lydia Mee
- Published: 2026-11-13T17:20:10+00:00
- Read time: 1 min
- Topics: oscar piastris, mark webber, guenther steiner, formula one, sao paulo gp, 2025, drivers championship, sports, cars
## Guenther Steiner's claim
Former Haas F1 team principal Guenther Steiner suggests Mark Webber became too involved in Oscar Piastri's career.

> the former haas team principal believes oscar piastris wanted greater independence after a difficult second half of 2025
## End of management agreement
Oscar Piastri and Mark Webber mutually ended their management agreement after the São Paulo Grand Prix.

> piastri and webber announced after the sao paulo grand prix that they had mutually agreed to end their management agreement
## 2025 season timeline
Piastri's title challenge against Lando Norris faded in late 2025, prompting Oscar to seek independence.

> the second half of the season last year when oscar after he didn t win the world championship maybe mark got a little bit involved too much
## Oscar's decision
Oscar Piastri stated he wanted to 'do this on my own' after stepping back from Mark Webber.

> oscar said ok i m now more experienced i want to do this on my own
## Key takeaway

Former Haas F1 team principal Guenther Steiner claims Mark Webber became too involved in Oscar Piastri's career before Piastri sought independence.