There is a popular idea that reducing taxes on profits would spurn significant job growth. However doing so in no way changes the math on how many job's maximize profits. Further, profitable company's that higher people temporarily reduce there profitability which directly reduces their tax burden and has the same effect cheaply and automatically. Also, profitable company's can borrow money to assist growth so if you look at things from an accounting perspective removing all taxes on profits has a tiny impact on how fast a company can grow.
Note, there are ways to change the tax structure to actually promote job growth in the short term. Such as a reduction in payroll taxes for company's that employ more people now than they did at any time in the last 5 years. However, none of them change the long term math on what the ideal number of employees for a stable company is.