By its very definition, it is just that: work, being an action you need to take to attain a result.
While it can and should be rewarding, uplifting, engaging, inspiring, and fulfilling at times, it can also be challenging, frustrating, tiresome, and draining.
Its very nature requires dedication, persistence, and a commitment to the task or activity to attain any meaningful result. You may hear of the story of someone who has a seemingly easy job, in your opinion, yet you are less likely to hear of the ones that are grueling and a trudge.
The point is that work can be just that, challenging and necessary for success. Nothing can replace the vital ingredient of work, be it the implementation of strategy, the roll-out of a product, or the assessment of current situations. Too often, it is the difference between those who prosper and those who fail, nothing more.