[Unoslacker]

I know this isn't the correct thread to be asking this in but I am a rookie on here and it won't let me create a new thread. Does anyone know if I edit a players attributes, lets say speed for example, under roster management in an already started offline franchise, will it stop/alter their progression or make them regress after doing this? I see that they have Yasiel Puig's speed at 68 slower than Corey Hart rated at 70 and dealing with chronic knee issues. I know this speed rating isnt correct and I thought of moving him up to 84, +1 of Heyward ranked 83. I just don't want any players that I edit to stop getting better long term. Thank you in advance!

-Uno