However, he’s earned rave reviews in camp from players and those who have watched practice. Head coach Kyle Shanahan, on the other hand, might not be viewing the youngster so favorably. After Tuesday’s joint practice with the Tennessee Titans, the 49ers' coach seemingly tried to pump the brakes a bit on the excitement. Amid the unheralded praise from players and pundits alike, the sentiment appears lukewarm in comparison, and for good reason. De"Zhaun Stribling has uphill battle to relevancy in Kyle Shanahan's systemEveryone knows how Shanahan feels about young receivers.