Jane is the director of sales for COMPLEX Products Inc., a manufacturer of tailor$-$made, turnkey waste cleanup systems for chemical plants. Given the high cost and complex nature of these systems, the sales process can often take months before a deal is signed. Recently, with competition increasing, the turnover rate among Jane's sales team has risen from $10\%$ to $25\%$ in annual terms. Which of the following options would you recommend to Jane in order to address this rising turnover rate?