I'll start the ball rolling on why I really, really want to see us hold on to Ike and not give up on him just yet.
During his 4 year career thus far, he has really only truly had one bad year.
2010: His rookie year and he did really well with a .350 OBP and a .790 OPS. Also flashed defensive brilliance.
2011: Got off to a red hot start but suffered a freak ankle injury to end his season early. Had to deal with Happy Valley fever soon after that which is something that can take a year or two to full recover from.
2012: Horrible start to his season, but finished strong. It was a tail of two seasons for Ike, but he finished with 32 HRs and a .770 OPS overall. I'm not going to claim this is a good season, but lets also note that he had a very low .246 BABIP and in the 2nd half showed flashes of brilliance with plus power. I wouldn't say this was such a "bad" season.
2013: A bad year plain and simple. Only real positive I can take from it is that he increased is BB rate and had another good second half, but this time it didn't even come close to making up for his awful first half. Also suffered from another very low BABIP at .268.
I'm not going to claim that Ike is all good. Clearly he needs to make an adjustment at the plate. Earlier in his career he was able to carry a higher than average BABIP. He did so in the minors and during his first 2 seasons. This combined with his strong BB rates gave him consistently high OBPs from year to year. After his ankle injury and Happy Valley fever, there was just something wrong with him and has been ever since. He is now carrying ridiculously low BABIPs year in and year out and combined with his usual high K rate, it just is not a good formula for having success in the big leagues.
Having said that, this offseason is the first time he has had to truly look at himself in the mirror coming off a "bad" season and look to make some adjustments. We know he has always been a guy who has dropped his hands to his waste and has always had a hitch in his swing, so that isn't what has caused him to spiral downward. Ike himself said he started his offseason program earlier this year, watched a ton of film on himself, and noticed some slight adjustments he needs to make. I think we would be smart to see if these adjustments can improve his contact hitting skills and get him back on track to being the player he looked like he was going to become before his 2011 ankle injury.
We know what skills he has. He has plus power and good enough plate selection to carry a high BB rate. We also know he has good defensive skills in him and is a solid athlete for the position. We also know that he has platoon splits that favor him hitting against RHP, which is something we could use to our favor to help give him a better chance to succeed and be productive in his at bats. We also know that he is only just entering his age 28 season.
Ike definitely needs to make an adjustment at the plate if he is going to turn things around, but I wouldn't rule this out from happening and I think Alderson and company would be very wise to give him one more chance to prove he can do it because the rewards could be well worth it IMO.