Whilst true, ideas are needed in the first place before testing their feasibility, and ideas and execution has been severely lacking at twitter. I invested in it when it was around a share price of 20 like 6 years ago, it's had almost no noticeable developments in the following period. I mean shutting down Vine.. says it all really. Good tech companies have the ability to bring push new ideas quickly and test them quickly. Facebook was built with that mantra.
Gutting out a lot of the crap at twitter and bringing in new talent is not a bad thing, in my opinion. Bring in new ideas.
My suggestions are things I've long thought would be implementable at twitter, part of the reason I invested in the company in the first place. And these are just a couple of things from a random person - if I were Musk id bring in strong analyst teams and he has brought in people like David Sacks and others. You take the ideas you have, develop and test them, and let the execution guide you. But you need ideas in the first place, and a solid understanding of market potential. It's why e.g. private equity invest in companies - they see where they think they can grow companies too. Twitter, in my opinion, has a lot of untapped potential that has not been realised yet. Musk if not anything has shown at Tesla and Spacex that he can build organisations that execute well. People hoping for him to fail will be disappointed, I feel.
Such is the way of the world unfortunately, douchebags often make good businessmen.