I hope Lids doesn't leave and he can see that a decent core is slowly being built up around him, but if he were to go then I think it will be more as a free agent to a contending club rather than being poached by GWS. After being at a Club that hasn't played finals in his whole 7 year career I can't see him wanting to go to GWS to spend another 5 years in the football wilderness and turning 30 before he sees any potential finals action. If he left for GWS then it would purely be for the $$$.
As for playing in the midfield, Lids' biggest challenge will be overcoming hard tags such as pesky little twerps like Picken from the Dogs who in the past have always got the better of Lids. Hopefully will the quality we have at the top end of our midfield and more harder bigger bodies to block and shepherd in traffic, opposition sides will find it harder to tag all of Cotch, Dusty and Lids at once. Lids like Dusty can also rest up forward so the two could rotate in and out of the centre which also helps to break a tag.