Sell tmac and either grind TTO to get Howell or grind spotlight to get manu to replace him. Also (this is optional) keep maker if you like him but if you don’t then sell him and get the OOP sf simmons and give simmons a 3pt shoe he will be very good. You will have around 300k left to spend I recommend keep the 300k and wait for future content drops if you are ok with your current team. If you need to upgrade someone then better use those MT to upgrade your players.
I would rather grind for Ginobili for the PG position. I am also surprised the DM Tmac is on the bench. He is one of my favorite players and imo better than bridges. His length and wingspan are great. However, I am biased bc TMAC is one of the few cards with a release that I can time well (not very quick like most new cards).
For investments, I would also rather wait for the next season.
Dont use Harper hes ass now Get Larry Bird instead