The bottom line is this - right now he is ranked #88 according to the live ATP daily ranking system. He wont win tomorrow hence he wont defend all of his 90 ATP points from last year and he his ranking will drop even further. I am not sure if Brad Gilbert would even consider working with Harrison.
It works both ways - Brad has a very successful record as a coach - if he were to take on Harrison and he did not improve - the blame would fall on Brad Gilbert.
Ryan H should get on his knees and BEG for Gilbert to coach him but I seriously doubt either guy wants this.
Prediction - by the end of the ATP 1000 Miami - Harrison is out of the top 100.
Hope i'm wrong...
I'm pretty sure he won't. The live rankings take off last year's points at the beginning of the week. Ryan's #88 ranking already excludes his 90 pointer at Indian Wells last year.
Nevertheless, Ryan should play USA clay Challengers after Houston in my opinion. There are three in a row in which he can get some confidence and match wins before Roland Garros. But somehow I doubt he'll do this.