Grocery Anchored center questions

[Max Powers]

If you're looking at a neighborhood shopping center with a major grocery anchor, how much in-line space is considered ideal?

Also, let's say you have a major grocery store, but also have a very popular restaurant, such as a local pizza or Mexican place.  Would those kinds of restaurants or other popular in-line tenants improve the grocery sales?  For example, stopping at the grocery store while picking up laundry or the kids from a daycare? 

If the grocery store is dated, how difficult is it to remodel?  Can this be done in a way to minimize hassle to shoppers or is a complete rebuild more usual?