What should a B2B SaaS startup do?

Through analysis of public B2B SaaS companies, I am aiming to answer the following question.

What should B2B SaaS startup do to grow the business:

1. Drive marketing
2. Hire more sales
3. Drive consumption and customer satisfaction through hiring more customer success and support employees
4. Build new features

Data sources:

• LinkedIn: number of followers, number of employees on December 2021 and December 2020 (total, sales, business dev, support, engineering)
• SimilarWeb: visits on website in November 2021, bounce rate, marketing channels split and details.
• MRR in November 2021 and November 2020.