I agree with the idea of getting more budget back to Landscaping and Maintenance. I did feel like the floral and landscaping was markedly less creative in the last year I was there (2012) than in the past.
Entertainment needs to be reined in. Go back to having a few stable core shows, particularly for the summer season, including one major nighttime production for RPT. Summer should be the time when the park is "normal" without a themed overlay like Christmas or Halloween are. Let Entertainment go all out for HOS and Christmas Town productions and decor. Get rid of Illuminights (or the idea of Illuminights in another incarnation) altogether because as it is not immersive enough to justify the resources that are put into it -- and again, summer should just be the park at its "normal" non-seasonally-themed best.
Perhaps come up with some more small, but well advertised!, special events like Wild Days that take advantage of resources from the chain as a whole. These are the kinds of offerings that might offer some smaller accents to the basic summer season that wouldn't be budget breakers but might bring the passholders in for an extra visit and, without having to spend a lot, still might stand out to the once a year or once every few years visitor, so that those casual visitors don't think the park is the same-old, same-old every year. Also, the Food and Wine Festival -- a nice production but doesn't require huge amounts in terms of decor or new shows. Might the Food and Wine Festival be better for summer? They'd have to be sure to have enough personnel and food to handle the larger summer crowds, but again it might punctuate the summer season without requiring a huge budget compared to a new show or, of course, a new ride.
Rides do need to be added and I don't have a handle on what is going on with that these days. Are parks still competing for biggest and newest and most technological coaster, or not? But they have to quit taking out rides to add rides. There really aren't a huge number of rides in the park, so regardless of service life issues and the like -- no more losing Le Mans for Griffon (much as I love Griffon), no more sacrificing the Big Bad Wolf even though Verbolten is a respectable replacement, etc.