The Project Management Triangle at times is also called the Iron Triangle of Project Management. You may have heard the phrase “speed, quality, or cost, pick two.” or something like it. This is about the idea that time, scope, and cost are all linked with quality. Since you have a specific scope in any project, the equation changes to scope + time + cost = quality. (Project Management Triangle – Wikipedia)
As an employee of a corporation, either as a worker or manager, you will need to be aware of those factors. Each manager and each worker will focus on different factors in the equation and this puts a tension on the interactions when it comes to deadlines and output product.
Most low level workers have the role of producing something based on a given scope and with a certain level of quality. This then puts time and cost as the other two factors that may suffer. So at times the managers will be pushing for a certain deadline which means cost is going to go up to get it done faster because it requires more material or human resources. Other times managers will push for money to be lower which means that the current material and human resources must be used to create the product or service. Then other times they tell the worker that they must get the scope of work done by a certain deadline (time) and at a certain cost. This forces the quality to be constrained.
You may have thought of some examples of these scenarios where you have worked or other companies and their products.
When it comes to a product that is a creative endeavor such as video games, you will probably have seen one of two things happen. The game comes out late so they could fix quality issues or they released on time but it had a lot of quality issues.
Sometimes you may see managers try to throw more money at something to get it done faster. This may come in the form of putting more people on a project or buying more material resources. Some projects just cannot be broken up effectively into smaller pieces for multiple people to do in parallel. Also most processes are in sequence or series and cannot be done in parallel.