How do Jet2 and TUI differ in their seasonal aircraft basing at Newcastle?

Community members said Jet2 tends to keep based aircraft where they are for most of the year, which can lead to longer seasons so the aircraft remain productive. By contrast, TUI was described as moving aircraft between bases during winter and reducing services such as Greek routes from October at many locations. One view linked this to the package holiday model of TUI, where resort staffing and accommodation contracts make a short extra season less cost-effective even if some marginal airline revenue remains.