A contradiction at Rice?

Here are some excerpts from an interview:

https://www.houstonpublicmedia.org/articles/shows/2023/08/18/459375/i-see-u-episode-92-here-i-am-with-rice-university-president-reginald-desroches/

Rice University President Reginald DesRoches said:

<blockquote>it’s been a very, very busy year, uh, in terms of just the change that I’m trying to embark upon at Rice, you know, bringing in a whole new leadership team, hiring nine new vice presidents out of 12 in a period of a year. 

...

[I became] president at one of the best institutions in the world</blockquote>

Call me mystified.

If Rice was "one of the best institutions in the world", 

then why did he feel the need to

"[bring] in a whole new leadership team"?

Does it occur to him that the old leadership team might have been a vital part of what made Rice "one of the best institutions in the world"?

And that the new leadership team might not be able to maintain that level of excellence?

From later in the interview:

<blockquote>Eddie Robinson: If you can, if you, if you don’t mind, if you can kind of go through the challenges of your first year.

Reginald DesRoches: Yeah. I mean, obviously one of the challenges is building a new team, right? 

So I’m in the process of 

hiring all new leaders and 

getting them in and 

getting them all on the same page and 

accustomed to the Rice culture, um, 

developing a strategic vision for the university. 

 ...

we have a new, a new team on board. 

We have all the new leadership. </blockquote>

Again, the question comes:

"If Rice was so outstanding when he came in, 

why did he feel the need to "build a new team"?