You do not always need to spend big to get a solid player. Sometimes, you have the best quarterback in the league that is only 24 years old so you need to spend half a billion dollars on him. Other times, you land a solid role player for lower than the market value.
With Philip Rivers now gone, the LA Chargers do not have many large contracts on their payroll. However, that is set to change after the 2020 season, as several key members of the Chargers roster are going to be free agents.
As of right now, though, the Chargers are filled with moderate contracts which contain some fairly big bargains.