Many of your challenges may result from how much emphasis you place on having strategies to limit the amount of time that positions remain vacant. They may also occur because of failure to create positions that need to exist. Filling open positions with the wrong level of talent because of the compensation level you have set for the position is another pitfall. Most organizations are so caught up on what a position will cost them that they lose big opportunities to hire people who can bring in revenue and operational efficiency that far exceeds their earnings package. Existing people get burned out trying to make up for the missing employee, and current efforts are not executed well because people are spread too thin.