I like Stacey, but he's stood still since signing. After a bright start, he's not developed or kicked on, and is basically still the green and erratic young full back he was 3 years ago. He was poor last season IMHO.
Having different managers and coaching staff with different preferences in that time probably wasn't ideal for Jack's development. Maybe we look to sell, maybe he goes out on loan? I wouldn't want to just discard him lightly as there is a player there somewhere.
I haven't seen Fredericks play loads, but I do know he's experienced with a decent number of PL games under his belt. That will help the squad. Parker knows him, he'll know Parker's systems. I know he is right sided but also has covered the left when called upon. That's useful. It's a free transfer, so the risk is lessened.
Fredericks may not be the most exciting or ground breaking signing, but if he can provide a little more consistency and experience then that builds the squad.
Adam Smith will be competing for the spot of course, we know he does a job.