Often new leaders & managers start in an established team and want to change something to "make their mark" or have an impact as soon as possible, often with disastrous results (because they don't yet have the context to make informed decisions).
The advice is to spend time with your team to learn the ropes, figure out the internal politics, hear the common pain points and _then_ start addressing things, hopefully with some quick wins (like canceling a wasteful meeting or appropriating a larger conference room) that due to organizational inertia, went unaddressed.