Whoever we get is most likely going to be a MAJOR step down from Marrow. The guy is responsible for bringing in 55.5% of the 4 star players (counting transfers) during the Stoops era at UK. Losing him would absolutely kill our recruiting momentum. And even worse, we would then have him recruiting against us for those prospects in Ohio that we covet. Such a scenario would be a tremendous setback for UK. In fact, it could just be the difference between Stoops succeeding or failing here. Yes, I think it is really that big a deal. We've gotta do everything in our power to keep him from going to Michigan, but some of the things being said today don't sound overly encouraging.
As to who we should go after, I think Ron Zook would be a good choice as special teams coordinator. The guy did a good job at that position for Spurrier at Florida. And he is a good recruiter with ties not only to Florida but also Ohio (where he is from) and Illinois. Getting him wouldn't make up for the loss of Marrow. But he would be a good get who could help us on the recruiting trail.
Then, I think you'd have to go after a TE coach that also has a very good reputation as a recruiter. Finding one that just happens to recruit Ohio well may be a problem, so you might just have to look at the best candidate available with recruiting ties to a talent rich area, be that Georgia, Florida or wherever.
That said, I really hope we can keep Marrow. Losing him would be a tremendous blow to our recruiting, and recruiting Ohio specifically. If that were to happen, I don't see us pulling in many more 4 stars from that state.